Cruz: "My focus is entirely on the U.S. Senate." — His standard disclaimer
Jindal: "My honest answer is I don't know what I'm going to be doing in 2016." — February, speaking to press while in Washington for governors meeting.
Paul: "We're definitely talking about it, my family is talking about it. I truly won't make my mind up until after the 2014 elections. But I haven't been shy in saying we're thinking about it." — March 9, Fox News.
Perry: "I don't know whether I'm going to run for the presidency. I'm going to spend the time in preparation." — April, in Ohio.
Rubio: "It's something I'll consider at the end of this year." — May, on ABC. Does he feel ready to be president? "I do, but I think we have other people as well."
Ryan: "Jane and I are going to sit down in 2015 and give it the serious ... conversation, consideration that are required for keeping our options open. But right now I have responsibilities in the majority in the House of Representatives that I feel I ought to attend to, and then I'll worry about those things." March, CBS.
Santorum: "I don't know if I can do this. It's just tough." — April, AP interview. Timing of decision? "A year at least, probably."
Walker: "I'm really focused on 2014, not getting ahead of the game. ... You guys can predict all you want." — January, CNN.
WRITING A BOOK: The perfect stage-setter for a campaign season, just ask Barack Obama ("The Audacity of Hope," 2006; "Dreams from My Father," 2004)
Biden: No, not since before 2008 election.
Clinton: Yes, "Hard Choices" due for release June 10.
Cuomo: Yes, coming in 2014.
O'Malley: No. "I'm not sure where I'd find the time for that." It's probably only a matter of time before he finds time.