Democratic Senator Michael Bennet has said that he would support the Iran nuclear agreement to prevent another war in the Middle East.
"Our primary objectives are to prevent Iran from having a nuclear weapon, make sure Israel is safe and, if possible, avoid another war in the Middle East," he said in a statement.
"This agreement represents a flawed, but important step to accomplish those goals," Bennet added.
The Colorado Democrat becomes the 38th senator to announce support for the July 14 nuclear agreement.
On Friday, Senator Ben Cardin announced that he would vote against the agreement.
“This is a close call, but after a lengthy review, I will vote to disapprove the deal,” Cardin said in an article that will be published in The Washington Post.
The top Democrat on the Senate Foreign Relations Committee became the third Senate Democrat to announce his opposition.
Senator Charles Schumer of New York and Robert Menendez of New Jersey are against the accord.
Reaching 41 Senate votes would allow the filibuster procedural rule to block a vote on a disapproval resolution in the Senate and keep President Barack Obama from having to use his veto.
Congress later this month will vote on the Joint Comprehensive Plan of Action (JCPOA) reached between Iran and the P5+1 group -- the United States, Britain, France, China, Russia and Germany – in Vienna on July 14.
According to the international agreement, Iran will be recognized by the United Nations as a nuclear power and will continue its uranium enrichment program.
Iran sanctions are set to be removed in exchange for some limitations on the country’s nuclear energy program.