U.S. Vice President Mike Pence is postponing his trip to Egypt and Israel this week in order to stay in Washington for a congressional vote on President Donald Trump's tax overhaul plan, White House officials said on Monday. Pence had been scheduled to depart on Tuesday night for Cairo. Instead, the trip will be rescheduled for the week of Jan. 14, officials told reporters. "The vice president is committed to seeing the tax cut through to the finish line," said Alyssa Farah, a spokeswoman for Pence. "The vice president looks forward to travelling to Egypt and Israel in January." Pence has been a key figure in the Republican effort to overhaul U.S. tax law. He could provide a tie-breaking vote in the Senate if needed, though on Monday it looked like bill has enough votes among Senate Republicans to pass. Pence was to have spent three days in the region with stops in Cairo and Jerusalem, the first high-level official to visit after Trump reversed decades of U.S. policy and recognised Jerusalem as the capital of Israel.