President Barack Obama says he now supports same-sex marriage, ending months of equivocation on a subject with powerful election-year consequences.

Obama says he has concluded that it is important for him to affirm that he thinks same-sex couples should be able to get married. He says he came to the conclusion over the course of several years of talking to family and friends.

Obama has previously said his personal views of gay marriage were evolving, a stance that frustrated gay rights supporters.Obama revealed his support for gay marriage in an interview with ABC News.

Below is a statement Obama sent in an email to campaign supporters Wednesday evening:

Today, I was asked a direct question and gave a direct answer:

I believe that same-sex couples should be allowed to marry.

I hope you'll take a moment to watch the conversation, consider it, and weigh in yourself on behalf of marriage equality:

http://my.barackobama.com/Marriage

I've always believed that gay and lesbian Americans should be treated fairly and equally. I was reluctant to use the term marriage because of the very powerful traditions it evokes. And I thought civil union laws that conferred legal rights upon gay and lesbian couples were a solution.

But over the course of several years I've talked to friends and family about this. I've thought about members of my staff in long-term, committed, same-sex relationships who are raising kids together. Through our efforts to end the "Don't Ask, Don't Tell" policy, I've gotten to know some of the gay and lesbian troops who are serving our country with honor and distinction.

What I've come to realize is that for loving, same-sex couples, the denial of marriage equality means that, in their eyes and the eyes of their children, they are still considered less than full citizens.

Even at my own dinner table, when I look at Sasha and Malia, who have friends whose parents are same-sex couples, I know it wouldn't dawn on them that their friends' parents should be treated differently.

So I decided it was time to affirm my personal belief that same-sex couples should be allowed to marry.

I respect the beliefs of others, and the right of religious institutions to act in accordance with their own doctrines. But I believe that in the eyes of the law, all Americans should be treated equally. And where states enact same-sex marriage, no federal act should invalidate them.

Leaders react to Obama's support of same-sex marriage

Rea Carey, Executive Director National Gay and Lesbian Task Force:

President Obama’s ‘evolution’ is now complete. Congratulations, Mr. President, for making history today by becoming the first sitting president to explicitly support marriage for same-sex couples. Who benefits? Millions of families who now know that their country’s leader believes in fairness for all. This is a great day for America.

We celebrate this moment and also remember that the right of loving, committed couples to get married is just one of many issues affecting lesbian, gay, bisexual and transgender people. It is heartening to know the president stands with our families in the pursuit of full equality, economic security and justice.

Anthony D. Romero, Executive Director American Civil Liberties Union:

President Obama is doing the right thing and showing leadership by recognizing that lesbians and gays should be treated as equal citizens. The freedom to marry whomever we love and want to share our life with is fundamental to who we are and what we stand for as a country. The fight for fairness and equal treatment under the law for all Americans took a critical step forward today.

Art Wood, Chairman, Hillsborough County Republican Party
 

"We understand that everything Mr. Obama is doing at this point, including his speeches, appearances and endorsements are a part of a calculated and timed strategy to enhance his re-election campaign." says Art Wood, Chairman of the Hillsborough Republican Party.
 
"We think the issues of rising gas prices, a sluggish housing system and down-economy are all issues affecting Americans deeply and are being distracted with a strategic endorsement." continues Wood. "Furthermore, we feel the issue is a state-by-state issue, rather than contributing further to  growing federal government control."

Information from the Associated Press was used in this report.