Washington • A debate between two senators over whether Republican tax cuts are aimed at helping the rich escalated into raised voices, interruptions, a banging gavel and a decidedly un-senatorial cry of "bull crap."

The eruption occurred late Thursday as Republicans pushed a near $1.5 trillion, 10-year tax cut for businesses and individuals through the Senate Finance Committee over Democrats' objections.

Ohio Democratic Sen. Sherrod Brown said people know Republicans want to help the rich because it's "in their DNA."

The committee's chairman is 83-year-old Orrin Hatch. The Utah Republican has served in the Senate since 1977, and he told Brown he'd heard enough.

Hatch said he's helped disadvantaged people "my whole stinking career."

As the two senators talked over each other, Hatch said he was tired of Democrats' "bull crap."