WASHINGTON — The Senate has confirmed President Trump’s choice for Army secretary.

Senators voted, 89-6, Wednesday to approve the nomination of Mark Esper, defense giant Raytheon’s top lobbyist, for the Army’s top civilian post.

Esper told the Senate Armed Services Committee during his confirmation hearing that if confirmed, he would recuse himself for two years from matters related to the Raytheon Company that may come before him.

Massachusetts senators Ed Markey and Elizabeth Warren voted against Esper’s nomination. At Esper’s confirmation hearing earlier this month, Warren asked Esper to recuse himself from Raytheon-related issues for more than the two years required by White House ethics rules. Esper declined.

A spokesperson for Markey said the Democratic senator’s opposition to the nomination came from Esper’s refusal to recuse himself for more than two years from issues related to Raytheon, one of the top five defense companies in the country.

Warren cast her vote out of concern for the number of Pentagon appointees to senior leadership positions coming from the defense industry, a spokesperson said.

Trump announced in July that he’d selected Esper after his previous two picks for the post had to withdraw from consideration.

Trump’s first pick for the job, Vincent Viola, dropped out in early February because of financial entanglements.

Mark Green, Trump’s second choice for Army secretary, stepped aside in May amid criticism over his remarks about Muslims and LGBT Americans.

Globe correspondent Julia Jacobs contributed to this report.