Florida Gov. Charlie Crist has proposed a 10-cent-per-gallon tax break for two weeks in July, while lawmakers in New York, Missouri and Texas have also toyed with the idea of providing temporary gas tax relief, The New York Times reported Tuesday.

Presumptive GOP nominee for president Sen. John McCain, R-Ariz., and Democratic hopeful Sen. Hillary Clinton, D-N.Y., have proposed summer long breaks on the 18.4-cent-per-gallon federal gas tax.

Democratic candidate Barack Obama and many economists have denounced the idea as a gimmick.

Retailers haven't passed previous gas tax relief in full to consumers, the Times reported.

Indiana and Illinois suspended about 7 cents of their gas taxes in 2000 but prices at the pump declined by an average of 4 cents, the Times reported.