That would be Texas Senator John Cornyn:
Via Erick Erickson of RedState.com:
[T]he following Senators voted to pass the continuing resolution even though it still funds Obamacare.
If any one of those senators tells you they did not vote to fund Obamacare or, in fact, voted against funding Obamacare, they are being mendacious. They may have voted for Ted Cruz’s amendment, but after it failed, they still knowingly and willingly voted to fund Obamacare. And now they are lying to their constituents who call them out on it.
Erickson notes that Cornyn et al. are trying to cover their tracks:
Readers from Texas, Kentucky, Utah, South Dakota, and Georgia all had the same story. They’d called the offices of Senators Chambliss, Cornyn, Hatch, Thune, McConnell, and Isakson to object to those senators funding Obamacare. They were all told by these Senate offices that these Senators had voted to defund Obamacare or, in the case of Senator Cornyn’s office, that there had been no vote on defunding Obamacare.
These Senators and their staffs are lying. They voted to fund Obamacare. More troubling, they know they did it…