Senators Kirsten Gillibrand and Mark Udall and Congressman Mike Quigley are cheering a federal judge's ruling overturning DADT.

U.S. District Judge Virginia A. Phillips ruled Thursday that the Pentagon's “Don't Ask, Don't Tell” policy violated the U.S. Constitution. The policy has a “direct and deleterious effect” on the armed services, she ruled.

The 1993 policy bans gay troops from serving openly. Over 13,000 gay and lesbian service members have been discharged under the policy.

President Obama says he supports repeal of the Clinton-era law, but administration lawyers defended the policy at the two-week trial in California.

Both senators are strong advocates of repeal. Last year, New York Senator Gillibrand considered backing a Senate amendment that would pause military discharges based on sexual orientation for 18 months. After shopping around the measure for a week, she concluded it was a non-starter.

As news of the ruling broke Thursday, Gillibrand tweeted: “Great news! It's my hope that DOJ does not appeal. DADT is immoral & hurts our military.”

Senator Udall, a Democrat from Colorado, also announced his support on Twitter: “Fedl court finds Don't Ask Don't Tell unconstitutional. Time 4 Congress to repeal it to improve natl security.”

Congress is currently debating whether to repeal the law. House members voted in favor of a repeal measure in May, and the Senate is expected to take up the issue this month.

“I applaud the Court's decision, and urge the Senate to follow the lead of the House and repeal this morally repugnant – and now unconstitutional – policy,” Illinois Congressman Mike Quigley said. “It's time to end 'Don't Ask, Don't Tell' today.”