WASHINGTON (AP) -- Unemployment rates rose in 44 U.S. states in July, the most states to show a monthly increase in more than three years and a reflection of weak hiring nationwide.

The Labor Department says unemployment fell in only two states and were unchanged in four.

Unemployment rates rose in nine states that are considered battlegrounds in the presidential election. That trend, if it continued, could pose a threat to President Barack Obama's re-election bid in less than three months.

Nationwide, hiring improved in July after three months of tepid hiring. But the unemployment rate ticked up to 8.3 percent from 8.2 percent. Monthly job gains have averaged 150,000 this year. That's barely enough to accommodate population growth. As a result, the unemployment rate is the same as when the year began.