Where did Sanders stand on health care in the '90s? Behind Clinton

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Where Did Sanders Stand on Health Care in the '90s? Behind Clinton

Do you ever feel invisible? Well, Democratic presidential candidate Sen. Bernie Sanders might feel your pain.

During an event in St. Louis, former Secretary of State Hillary Clinton asked where Bernie Sanders was in the '90s when she was fighting for health care reform.

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Things got awkward when a member of Sanders campaign tweeted a screenshot of Sanders literally standing right behind her as she spoke at Dartmouth College about health care reform in 1993.

A Clinton spokeswoman retorted, "Exactly, he was standing behind her. She was out in front."

See Sanders and Clinton at a recent town hall:

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Hillary Clinton and Bernie Sanders at Las Vegas town hall
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Where did Sanders stand on health care in the '90s? Behind Clinton
Democratic presidential candidate Hillary Clinton speaks during in a televised town hall meeting with Senator Bernie Sanders at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Fmr. Secretary of State Hillary Clinton appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Chuck Todd appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
Democratic presidential candidate Senator Bernie Sanders speaks during in a televised town hall meeting with Hillary Clinton at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
Democratic presidential candidate Hillary Clinton speaks during in a televised town hall meeting with Senator Bernie Sanders at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Vermont Sen. Bernie Sanders appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
Democratic presidential candidate Senator Bernie Sanders speaks during in a televised town hall meeting with Hillary Clinton at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Fmr. Secretary of State Hillary Clinton appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
Democratic presidential candidate Hillary Clinton speaks during in a televised town hall meeting with Senator Bernie Sanders at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Fmr. Secretary of State Hillary Clinton appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Vermont Sen. Bernie Sanders appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
Democratic presidential candidate Senator Bernie Sanders speaks during in a televised town hall meeting with Hillary Clinton at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
Democratic presidential candidate Hillary Clinton speaks during in a televised town hall meeting with Senator Bernie Sanders at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas on February 18, 2016. The town hall discussion focused on issues affecting Nevada and the Latino Community was held just two days before Nevadas First in the West presidential caucus on Saturday, February 20, 2016. / AFP / JOHN GURZINSKI (Photo credit should read JOHN GURZINSKI/AFP/Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: José Díaz-Balart appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
MSNBC - ELECTION COVERAGE -- MSNBC and Telemundo Clinton-Sanders Town Hall -- Pictured: Vermont Sen. Bernie Sanders appears during the 'MSNBC and Telemundo Clinton-Sanders Town Hall' on Thursday, February 18, 2016 at the KMA Event Center in Las Vegas -- (Photo by: Virginia Sherwood/MSNBC/NBCU Photo Bank via Getty Images)
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The Sanders campaign has used snapshots from Clinton's past against her before. Back in January, Sanders tweeted a thank you card from 1993 from the then-first lady. He potentially tweeted this as a jab at Clinton for attacking his single-payer health care plan.

Not every tweet is contentious, though. The two also occasionally use Twitter to support each other.

Clinton notably retweeted Sanders when he said "America's first black president cannot and will not be succeeded by a hatemonger who refuses to condemn the KKK."

And Sanders retweeted Clinton when she sent out a link to donate to Flint.

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