Sen. Susan Collins at a 2011 news conference in Washington, DC. Alex Wong/Getty Images 
 
 Republican Sen. Susan Collins of Maine was caught on a hot mic Tuesday calling Republican Rep. Blake Farenthold of Texas "unattractive" during a legislative session Tuesday morning. 
 
 Last week, Farenthold singled out "female senators from the Northeast" as being responsible for hampering the Senate's effort to repeal and replace the Affordable Care Act, the healthcare law better known as Obamacare. 
 
 Collins, along with Republican Sens. Shelley Moore Capito of West Virginia and Lisa Murkowski of Alaska, has opposed the Senate's proposed healthcare overhaul. 
 
 Farenthold said "if it was a guy from south Texas" opposing the legislation, "I might ask him to step outside and settle this Aaron Burr-style." 
 
 Collins mentioned Farenthold's comments Tuesday morning while speaking with a male senator during a subcommittee hearing. 
 
 "Did you see the one who challenged me to a duel?" Collins asked her colleague. 
 
 "I know," he replied. "Trust me — you know why he challenged you to a duel? Because you could beat the s--- out of him." 
 
 Collins laughed and added, "He is so unattractive, it's unbelievable." 
 
 She later asked her colleague, "Did you see the picture of him in his pajamas next to this bunny?" before the microphone cut off. 
 
 Collins was most likely referring to this photo: 
 
 The other senator wasn't immediately identified, but many reporters on Twitter speculated it was Sen. Jack Reed, the ranking Democratic member of the subcommittee. ||||| Tweet with a location 
 
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– "I don't mean to be unkind, but he's so unattractive it's unbelievable," Republican Sen. Susan Collins said Tuesday. Collins was caught on a hot mic discussing Republican Rep. Blake Farenthold after a Senate subcommittee hearing. Last week, Farenthold blamed "female senators" for defeating the GOP health care bill, Business Insider reports. Farenthold said that if they were men, he'd challenge them to a duel. According to the Hill, Collins has been one of the most outspoken Republican opponents of the bill. On Tuesday's hot mic, which Collins had failed to turn off, she called Farenthold "huge" and referenced a photo of him in his pajamas posing with a Playboy bunny. Democratic Sen. Jack Reed was caught on the mic telling Collins she "could beat the s--- out of" Farenthold. The hot mic also caught Collins and Reed discussing the upcoming budget battle and the unpreparedness of President Trump, the Washington Post reports. Collins said she's "worried" about Trump and the possibility the government will be "paralyzed" when no budget deal can be reached. "I think he's crazy," Reed said, apparently about Trump, adding, "I don't say that lightly." Collins called the Trump administration's handling of the federal budget "incredibly irresponsible." She said it seems like whenever the budget includes the word "grant," the administration would "just X it out with no measurement, no thinking about it, no metrics, no nothing."