WASHINGTON — Moving cautiously to repair his image, New Jersey Gov. Chris Christie is maintaining a low profile this weekend as the nation’s governors gather in Washington.

Republican officials have been eager to change the subject as Democrats link Christie’s troubles to vulnerable GOP governors in a challenging election season.

The usually outspoken Christie is scheduled to attend just one public event over the three-day annual meeting. He avoided a media-sponsored forum Friday, wasn’t granting interviews, won’t attend a White House dinner and was skipping a news conference hosted by the Republican Governors Association, an organization he heads.

Christie is leaving Washington early to celebrate his daughter’s birthday and focus on an upcoming budget address, according to his office. Advisers privately acknowledge a larger effort to reduce media coverage of ongoing abuse-of-power investigations in New Jersey that threaten to derail his ambitious political future. When elected to his second term last fall, Christie was considered one of his party’s strongest prospective presidential candidates.

“Governor Christie may be hiding under a bridge somewhere or stuck in traffic, but the fact that he’s a liability for Republican governors remains readily apparent this weekend,” said Vermont Gov. Peter Shumlin, chairman of the Democratic Governors Association.

Scandal erupted in New Jersey six weeks ago when internal e-mails revealed that senior members of the Christie administration ordered traffic lanes closed near the George Washington Bridge, perhaps to punish a Democratic mayor. The closures created days of gridlock that ensnared commuters, schoolchildren and emergency responders.

Federal authorities are conducting a criminal investigation, while state lawmakers are pursuing their own civil probe. Christie has denied personal involvement, but five people close to him have been fired or have resigned.

Republican governors seemed keen on avoiding questions about Christie’s leadership of the organization responsible for electing GOP governors. Republicans face a challenging political map going into the November midterm contests. They are defending 22 of the 36 governor seats up for election, including six in states that President Barack Obama carried twice.

Michigan Republican Gov. Rick Snyder, who faces his first re-election this fall, said he appreciates Christie’s support as chairman of the governors association but declined to say whether he wanted Christie to visit Michigan on his behalf.