Could unexpected Democratic gains foil a midterm Republican victory?

A string of favorable outcomes for the party, coupled with backlash from supreme court's abortion ban, could galvanize Biden supporters

Joe Biden travels to the battleground states of Wisconsin and Pennsylvania on Monday, determined to reframe America's midterm elections as a defining choice between democracy and the extremism of Donald Trump.

Fighting for every vote, the US president will mark Labor Day with growing confidence as opinion polls suggest that, while Republicans still have the lead, Democrats now have the momentum heading into the home stretch.