(CNN) - Mike Huckabee made clear Tuesday he's not ready to concede the Republican presidential race to John McCain.
Speaking to reporters in Cleveland, the Arkansas Republican pressed McCain for a debate, and suggested the Arizona senator's viability may be hindered if the Federal Election Commission caps his primary spending.
“There's a race going on, and I wish Sen. McCain was debating me this weekend,” Huckabee told reporters in Cleveland. “I wish we were going to be in Cleveland tonight on stage or in Dallas or in Houston or San Antonio or Austin or somewhere between now and Tuesday having a debate.”
"I think certainly Republicans in these states that are voting deserve that, and I'm disappointed that we're not in that same kind of forum," Huckabee also said.
McCain said later Tuesday he would consider the possibility of a debate.
Huckabee, who has said he plans on staying in the race until McCain amasses the entire 1,191 delegates needed to secure the party's nomination, also raised the Democratic National Committee's charge that McCain may be subject to FEC spending caps until the Republican Convention in September.
"There are a lot of issues about whether or not he’s going to be able to do anything but go completely dark between virtually now and the nomination convention, and what does that do to the whole field? " Huckabee said.
"What happens?" he continued. "None of us know, that’s my point. When everybody says 'here’s how it is,'nobody knows how it is because isn’t yet."
– CNN's Alexander Marquardt and John King contributed to this report