Liz Cheney, daughter of former Vice President Dick Cheney, has decided to challenge Sen. Mike Enzi, R-Wyo., for his Senate seat in 2014, something she warned him might take place in a phone call last year.

“Today, I am launching my candidacy for the United States Senate,” Cheney says in her announcement video. “Instead of cutting deals with the president’s liberal allies, we should be opposing them every step of the way.”

The announcement comes as no surprise to Enzi. “She called me and said that she’s looking at it,” Enzi told the New York Times in a July 6, 2014, story that suggested “Ms. Cheney’s ambitions reflect a greater tension within the Republican Party as a younger generation feels less reluctance to challenge incumbents in the party, especially if they are seen as too consensus-minded or insufficiently conservative.”

Cheney, though, won’t have the support of at least one prominent Tea Party senator. “I am a friend of Sen. Enzi and while we aren’t exactly the same, I consider him a good conservative,” Sen. Rand Paul, R-Ky., told Politico last week.

On the other hand, Enzi recently sponsored the Marketplace Fairness Act, an online sales tax that drew conservative opposition. “What we are seeing in this bill is Washington ganging up with the giant corporations, and you’re seeing Democrats and Republicans arm and arm with giant corporations saying let’s raise $23 billion in taxes on consumers all over the country,” Sen. Ted Cruz, R-Texas, said last month of the bill.