Democrat Casey says the greed of “big conglomerates” is to blame for high prices for household essentials. Republican McCormick claims the economy is “weak.”

The U.S. Senate candidates accused each other of lying and shared a stage for the last time before the Nov. 5 election.

Democratic U.S. Sen. Bob Casey of Pennsylvania and Republican challenger David McCormick meet for their second debate Tuesday evening, with control of the Senate on the line and tens of millions of dollars pouring into the race every week.