President Obama has scrapped a planned two-day trip to Los Angeles early next week ahead of a congressional vote on a military strike against Syria.

The cancellation of the trip suggests the urgency with which Obama needs to press his case to win approval from Congress for military action.

“The president’s trip to California has been canceled,” a White House official said. “He will remain in Washington to work on the Syrian resolution before Congress.”

While prospects for passage of a resolution in the Senate look positive, the White House does not appear to have the votes in the lower chamber to win — at least not yet.

The president had been scheduled to speak to an AFL-CIO convention while in California, in what the White House had billed as a continuation of his middle class jobs tour.