The head of a conservative group seeking to limit immigration reform denigrated Sen. Marco Rubio (R-FL) while saying he should be the focus of efforts to curtail the recent legislation proposed by Rubio and the bipartisan "Gang of 8."

"The question, the way it would have to be presented to Rubio, is, 'Are you the conservative ambassador to this Gang of Eight writing this bill, or are you [Sen.] Chuck Schumer's (D-NY) ambassador to conservatives?'" Center for Immigration Studies executive director Mark Krikorian said in a conference call with Republican "Tea Party" advocates on May 2. "I'm afraid he's the latter. He's now Chuck Schumer's waterboy, making the case for the bill that the Democratic staff, Schumer's staff, wrote, and making the case for it to conservatives to try to get enough people basically, you know, silenced enough that this thing can get through the Senate."

Krikorian made similar allegations in an April 23 column for the National Review, referring to Rubio as both "Schumer's protege" and his "waterboy" and saying that he "neither knows nor cares about the details of this legislation. It amnesties the illegals and that appears to be all that matters to him."

Rubio, who is often mentioned as a potential Republican presidential candidate, briefly became a national punchline in February 2013 after taking a swig of water during his live televised response to the State of the Union address. He later brushed the incident off, saying, "God has a funny way of reminding us we're human."

Listen to Krikorian's remarks, in audio posted by Right Wing Watch on Tuesday, below.