A set of national polls released this month shows a growing number of Americans saying former President Joe Biden’s performance in office was better than President Donald Trump’s current term, even though Biden left office with historically low approval ratings.

Recent polling indicates some of Trump’s signature issues are now liabilities.

A Harvard CAPS/Harris Poll conducted Jan. 28–29 found 51% of registered voters think Trump is doing a worse job than Biden did, compared with 49% who say Trump is doing better, according to the poll’s key results.

The results in the poll were nearly split, but suggest a shift from earlier in Trump’s presidency, when Trump’s job ratings were higher than they are now, even among some independents.

In another survey conducted Feb. 2–4 by Rasmussen Reports, 48% of likely voters said Biden did a better job as president than Trump, while 40% favored Trump, and 8% said the two performed about the same.

A third poll from YouGov and The Economist, conducted Feb. 6–9, found similar sentiment, with 46% of adults saying Trump is doing a worse job than Biden, and 40% saying he is doing better.

These results come as Trump enters the critical midterm campaign season, when historically the president’s party loses seats in Congress. The trio of poll results, from pollsters with differing ideological leanings, suggests broader dissatisfaction with Trump’s leadership.

Trump allies have defended his performance. In a statement responding to earlier polling data, White House spokesperson Kush Desai said the administration remains “laser-focused on continuing to cool inflation, accelerate economic growth, secure our border, and mass deport criminal illegal aliens.”

Independent surveys have shown public skepticism about border enforcement and economic stewardship, themes that have dogged Trump’s approval ratings.

Political analysts see the trend as a test for Republicans heading into November. The Harvard poll’s crossover between the two most recent presidents, one finished and one halfway through a term, has caught the attention of campaign strategists nationwide.