Republicans in swing U.S. House districts face political fallout as the December 31 expiration of enhanced Affordable Care Act (ACA) premium tax credits looms, potentially impacting the 2026 midterm elections and President Donald Trump's agenda.Despite entrenched opposition to "
Obamacare," Representatives
Ryan Mackenzie and
Jen Kiggans are among a bipartisan group pushing for an extension, while House Speaker
Mike Johnson has not committed to a vote.