By LIZ SIDOTI
AP National Political Writer

WASHINGTON (AP) – President Barack Obamas once solid support among Hispanics is showing a few cracks, a troubling sign for Democrats desperate to get this critical constituency excited about helping the party hold onto Congress this fall.
Hispanics still overwhelmingly favor the Democratic Party over the GOP, and a majority still think Obama is doing a good job, according to an Associated Press-Univision poll of more than 1,500 Hispanics.
But the survey, also sponsored by The Nielsen Company and Stanford University, shows Obama gets only lukewarm ratings on issues important to Hispanics _ and that could bode poorly for the president and his party.
For a group that supported Obama so heavily in 2008 and in his first year in office, only 43 percent of Hispanics surveyed said Obama is adequately addressing their needs, with the economy a major concern.
Source