U.S. Senate Republicans are working to pass a budget measure that they need to extend President Donald Trump's 2017 tax cuts -- and potentially cut other taxes -- while bypassing the objections of the chamber's Democrats.

The Senate voted 52-48 to begin debate on a multitrillion-dollar plan that would cut taxes, boost spending for immigration enforcement and the military and raise the debt limit.

The Senate is diving into a contentious debate on a budget plan critical to Republican efforts to pass trillions of dollars in tax cuts and boost border security and defense spending.