WASHINGTON — Vice President Mike Pence is pushing back his long-planned trip to the Middle East, his office confirmed Monday, citing the vote on the tax overhaul legislation this week.

“The largest tax cut in American history is a landmark accomplishment for President Trump and a relief to millions of hardworking Americans,” said Alyssa Farah, Mr. Pence’s press secretary. “The vice president is committed to seeing the tax cut through to the finish line.”

She added that Mr. Pence “looks forward to traveling to Egypt and Israel in January.”

The decision also came amid mounting tension in the region over President Trump’s decision to recognize Jerusalem as Israel’s capital. On Monday, the United States, using its veto power as a permanent member of the United Nations Security Council, blocked a Council resolution demanding that the Trump administration rescind its decision.