Biden Comes Out Swinging Against Republicans as His Agenda Stalls

WASHINGTON — President Biden has begun his second year in office by lashing out at Republicans, embracing forceful new attacks meant to define a choice for voters between Mr. Biden’s Democrats and a Republican Party still under the thumb of former President Donald J. Trump.

The sharp tone comes as Mr. Biden seeks to jump-start his agenda, which has largely stalled in Congress. And with midterm elections looming at the end of the year, the president faces a challenge that he has largely avoided so far: drawing Mr. Trump and...