Republicans who control the U.S. House of Representatives faced growing internal opposition to their current plan to advance President Donald Trump's tax-cut and border agenda, prompting Speaker Mike Johnson to acknowledge that a planned vote might not happen on Tuesday.

Conservative and moderate GOP lawmakers are expressing concerns about the budget blueprint as Speaker Mike Johnson eyes a vote this week.

U.S. House Republicans face a major test this week as the fractured and narrow caucus tries to unify around a plan to advance President Donald Trump's agenda for trillions in tax cuts and new spending on defense and border security.