Poll: Support for Trump's impeachment surges

With controversies and Russian investigations mounting, an increasing number of Americans support impeaching President Donald Trump.

According to a new POLITICO/Morning Consult poll, 43 percent of voters now want Congress to move toward impeaching the 45th president of the United States, up 5 percentage points from just a week prior.

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The majority of those who want the president impeached, 54 percent, believe he has "proven he is unfit to serve and should be removed from office, regardless of whether he committed an impeachable offense or not," according to the poll.

Click through local governments calling for Trump's impeachment:

The poll also shows that calls for Trump's impeachment are based more in politics rather than supported by claims the president has broken laws such as treason, bribery or obstruction of justice.

The president has been battling impeachment threats since early on in his administration. But as investigations into potential colluding between Russia and the Trump campaign in the 2016 election continue to expand, calls for impeachment, which were once viewed as fringe arguments, have started to gain serious mainstream traction.

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Democratic Rep. Al Green became the first member of Congress to officially request leveling charges against the president from the House floor a few weeks ago saying, "This is about my position. This is about what I believe. And this is where I stand. I will not be moved. The President must be impeached."

Others in the Democratic party, however, have attempted to dampen impeachment talks. House Minority Leader Nancy Pelosi said she hoped "some would curb their enthusiasm until we have all of the facts and have confidence that when the American people understand what is there, whether it's grounds for impeachment or grounds for disappointment, then they'll know."

But while the poll shows an uptick in Americans saying Trump should be impeached, it also bolsters a trend from other top polls that shows the president's approval rating settling around 40 percent.

Forty-five percent approve of the president's job, while 50 percent disapprove, according to POLITICO/Morning Consult poll.

The latest numbers from the Gallup daily tracking poll shows the president with a similar approval rating of 41 percent. Fifty percent said they disapproved of the president's job.