The Club for Growth isn’t letting up in a heavy advertising campaign aimed at taking down Donald Trump, the front-runner for the Republican presidential nomination.

“He's not really a conservative,” Club For Growth President David McIntosh said. “He'll tell what he wants you to hear, and who knows what he'd do if he got into office.”

McIntosh also pushed back against Trump's comment that the group asked the billionaire businessman for $1 million last summer.

Watch The Hill's video for McIntosh's response.