The high-stakes contest between longtime Pennsylvania Sen. Bob Casey and GOP challenger Dave McCormick is now a toss-up, according to the Cook Political Report, a prominent election forecaster. The political analysts on Monday recategorized the race from “leans Democrat” to “toss-up," and both candidates were quick to respond.

Democrat Bob Casey and Republican David McCormick are facing off in a race that could decide which party controls the U.S. Senate.

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