(CNN) - After defeating a slew of challengers from the right, Sen. Lindsey Graham on Sunday chalked up his primary win to success in messaging and a first-rate ground game.
The South Carolina Republican was asked by CNN chief political analyst Gloria Borger, guest host of “State of the Union,” what he did right last week that Rep. Eric Cantor did wrong. Cantor lost his primary to a little-known GOP opponent.
"I think I defined myself in a very good way," Graham said, suggesting Cantor failed to do the same with his constituents in Virginia’s 7th Congressional District.
"I had (an) air game and a ground game very coordinated. Politics is war in another form. We had a lot of money, but we had 5,200 precinct captains, so we prepared the ground game - nobody saw that coming. We really overwhelmed them on the ground."
South Carolina and Virginia were among five states to hold primary contests last Tuesday.
Graham faced a divided opposition in his primary bid, but easily topped the 50% threshold needed to avoid a runoff.
"The biggest fault attributed to me by my opponents was that I would work with the other side to get things done. I turned that into my biggest assets," he said.
Graham's considered a strong favorite heading into the general election, where he'll face Democratic state Sen. Brad Hutto.
More from State of the Union: Cantor reflects on primary loss, says 'of course' he'll vote for Brat in November
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