Support for Democratic presidential front-runner Joe Biden ticked higher following reports that President Donald Trump pressured his Ukraine counterpart to investigate Biden, while Americans overall are less supportive of impeaching Trump than they were months ago, according to a Reuters/Ipsos opinion poll released on Tuesday. In a sign that Biden’s supporters appear to be standing by their candidate, 20% of Democrats and independents said they would vote for him in statewide nominating contests that begin next year according to the Sept. 23-24 poll, up 1 percentage point from a similar poll that ran last week. It also found that 37% of the American public thinks Trump should be impeached, down from 41% in a similar Reuters/Ipsos poll that ran earlier in September. This compares with 44% in a poll that ran in May, after the Trump administration released portions of the Mueller investigation on Russian meddling in the 2016 election.