By Elise Viebeck - 04/23/13 08:01 PM EDT
Baucus made the comment to Health and Human Services Secretary Kathleen SebeliusKathleen SebeliusRomney: Trump victory 'very possible' Fighting for assisted living facilities The chaotic fight for ObamaCare MORE during a hearing Wednesday.
"I just see a huge train wreck coming down," he said of healthcare reform. "I'm very concerned that not enough is being done so far … Small businesses have no idea what to do, what to expect."
The statements reverberated widely and became a rallying cry for Republican lawmakers and other critics of the Affordable Care Act in the last week.
On Tuesday, another Tea Party group sought to raise funds from Baucus's announcement, claiming that conservatives could replace him with the "next Ted CruzTed CruzTrump at immigration crossroads Poll: Majority of GOP voters wish they chose another presidential nominee Trump attacking immigration issue openly and honestly MORE and Rand PaulRand PaulTrump, Clinton boost Snapchat spending Clinton enjoying edge over Trump in Silicon Valley Trump gets little backing from Silicon Valley MORE."
"You might know Sen. Baucus, as he played a key role in shaping President Obama's landmark healthcare law, ObamaCare," Tea Party Express told supporters in an email.
"This is a great opportunity to take this Senate seat."
Baucus is the sixth Senate Democrat to announce his retirement this cycle.