USA news: President Joe Biden made a final appeal on the eve of Tuesday’s midterms for Democrats to protect democracy by defeating Donald Trump’s Republicans in an election that polls show could upend power in Washington.

With Republicans well placed to win at least partial control of Congress and Trump hinting at a 2024 White House comeback bid at his own rally late Monday, Democrats braced for the worst.

Even if Republicans win only the House of Representatives, that would scupper Biden’s legislative agenda for the last two years of his first term and potentially lead to a weakening of US support for Ukraine’s resistance against Russia.

“Our lifetimes are going to be shaped by what happens,” Biden told an enthusiastic crowd at a historically Black university in Bowie, near Baltimore, late Monday. “We know in our bones that our democracy is at risk and we know that this is your moment to defend it.”