WASHINGTON (AP) — The Senate Democratic leader says Republican vice presidential candidate Paul Ryan's math doesn't add up — on marathons or budgets.

Majority Leader Harry Reid opened the Senate session Monday by mocking Ryan, who had to correct his initial claim last month of running a marathon in "two hour and fifty-something." In fact, Ryan's time was just over four hours.

Reid, who finished the 1972 Boston Marathon in three hours, 16 minutes, says that based on Ryan's math, he could have made the Olympic team. Reid said Ryan's math doesn't work with budgets, Medicare or taxes.

Reid said the math from presidential nominee Mitt Romney and Ryan doesn't add up.

There was no immediate response from the Romney campaign.