Portland Mayor Sam Adams on Friday told the Associated Press that he won't seek a second term.

Adams, 47, made history in 2008 when he became the first openly gay mayor elected to run one of the 30 largest cities in the United States. Two years later, openly lesbian Annise Parker was elected to run Houston, the nation's fourth largest city.

But Adam's jubilation was fleeting. Less than 2 weeks after his inauguration, the mayor was forced to admit that he lied about a sexual relationship with a teenage boy – Beau Breedlove, a legislative aide – during his mayoral campaign. Adams confessed to the affair under the threat of exposure from alternative weekly Willamette Week. Calls for his resignation immediately followed.

Breedlove was 17 when he met Adams in 2005. Both deny a sexual relationship before Breedlove turned 18, Oregon's age of consent.

Adams said he did not want to devote his remaining tenure to full time fundraising.

“To run for mayor would be a tough race,” Adams told the AP. “It would require that I spend a lot less time on the issues and challenges Portland is facing, and I'm not just willing to phone it in as mayor.”

Adams said legal bills stemming from the scandal had created a financial hardship.