O'Donnell has been mostly silent about the Republican frontrunner, even when he targeted her during the first Republican debate last August.
During the debate, Fox's Megyn Kelly said to Trump: "You have called women you don't like, 'fat pigs,' 'dogs,' 'slobs' and 'disgusting animals...'"
See images of Rosie O'Donnell throughout the years:
Rosie O'Donnell through the years
Rosie O'Donnell: Trump is like Harry Potter's Lord Voldemort
NEW YORK, NY - MAY 17: Rosie O'Donnell attends the 5th Annual Rosie's Theater Kids Spring Benefit at The Alvin Ailey Citigroup Theater on May 17, 2015 in New York City. (Photo by Paul Zimmerman/WireImage)
BENTONVILLE, AR - MAY 07: Rosie O'Donnell attends the 'League of their own' event at Arvest Park hosted by Geena Davis and Rosie O'Donnell at the Bentonville Film Festival on May 7, 2015 in Bentonville, Arkansas. (Photo by Ernesto Di Stefano Photography/WireImage)
NEW YORK, NY - MAY 03: Kate Mulgrew and Rosie O'Donnell attend 'An Evening with Kate Mulgrew', a reading and Q & A about her memoir 'Born with Teeth' at the Vineyard Theatre on May 3, 2015 in New York City. (Photo by Walter McBride/Getty Images)
NEW YORK, NY - FEBRUARY 09: (L-R) Liz McCartney, Rosie O'Donnell and Sarah Uriarte Berry attend the 'Taboo:Ten Years Later' reunion concert at 54 Below on February 9, 2014 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - FEBRUARY 06: (L-R) Lena Hall, Rosie O'Donnell and Annaleigh Ashford pose backstage at the hit musical 'Kinky Boots' on Broadway at The Hirshfeld Theater on February 6, 2014 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - JANUARY 31: Cyndi Lauper and Rosie O'Donnell attend 'Howard Stern's Birthday Bash' presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)
THE VIEW - Rosie O'Donnell returns to THE VIEW to a standing ovation, FRIDAY, FEB. 7 (11:00 a.m. - 12:00 noon, ET) airing on the ABC Television Network. Never shy on opinions, the Emmy Award-winner joins the co-hosts for Hot Topics, shares how her life dramatically changed since leaving THE VIEW and makes a declaration that even she thought she would never say. The appearance marks the first time Rosie O'Donnell has returned to the talk show since moderating Season 10 (2006-2007). (Photo by Lou Rocco/ABC via Getty Images)
BARBARA WALTERS, ROSIE O'DONNELL
NEW YORK, NY - FEBRUARY 06: (L-R) Rosie O'Donnell, Billy Porter as 'Lola', Eric Stonestreet and Andy Kelso as 'Charlie' pose backstage at the hit musical 'Kinky Boots' on Broadway at The Hirshfeld Theater on February 6, 2014 in New York City. (Photo by Bruce Glikas/FilmMagic)
NEW YORK, NY - JANUARY 31: Rosie O'Donnell at SiriusXM's 'Howard Stern Birthday Bash' at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Bobby Bank/WireImage)