In a significant move, the House passed a bill to extend health care subsidies 230-196 with bipartisan support, but its future in the Senate remains uncertain.

A handful of renegade Republicans in the US House of Representatives have joined all Democrats to pass a bill that would extend healthcare subsidies for millions of Americans.

Ahead of voting, the nonpartisan Congressional Budget Office estimated that the bill, which would provide a three-year extension of the subsidy, would increase the nation's deficit by about $80.6 bill...