Proposals to raise the minimum wage above the federal minimum of $7.25 an hour are increasingly divisive. Here's a look at some battlegrounds on raising the minimum wage:
SEATTLE: The City Council voted this month to gradually raise the minimum wage to $15 an hour. Big businesses will get three or four years to phase in the increase; smaller employers get seven years. A federal lawsuit is challenging the increase.
CHICAGO: City aldermen are calling for a $15 minimum wage; state lawmakers in Illinois have placed a vote on the fall ballot asking voters whether the state's $8 minimum wage should be increased to $10.
SAN FRANCISCO: City voters will decide in November whether to raise the city's minimum wage to $15 an hour in 2018.
NEW YORK CITY: Mayor Bill de Blasio had asked state lawmakers to raise the state's minimum wage from $8 an hour to $10.10, make future increases automatic based on inflation and allow cities to raise their starting wages up to $13.13. It appears state lawmakers will adjourn without voting on the measure.
OKLAHOMA CITY: Workers and organized labor urged city leaders to consider raising the minimum wage from $7.25 to $10.10, but state lawmakers blocked the proposal by passing legislation to prohibit cities from setting their own minimum wages.
PROVIDENCE, R.I.: Workers at large hotels pushed for a $15 minimum wage that would apply only to large hotels within the city limits. State lawmakers then passed legislation that will raise the state's $8 minimum to $9 next year, but also took away the authority of cities to set their own wage rules.
HAWAII, MARYLAND, CONNECTICUT: Leaders in all three states have voted to gradually raise the minimum wage to $10.10.
MASSACHUSETTS: Lawmakers have voted to raise the state's $8 per hour wage to $11 by 2017.
--The Associated Press