Ron Paul said Tuesday he is the only Republican presidential candidate in the field with "credibility" on economic issues.

Even though Republicans have moved in his direction on issues such as skepticism of the Federal Reserve and drastically reducing the size of government, other candidates are still "part of the status quo," according to the Texas congressman.

"Others are hitting and I think this is good, and I'm very pleased with it, and we're getting better votes in the Congress today," he said on Fox Business Network. "But I just think the other candidates pretty much a part of the status quo with the leaning now in a Republican primary, at least, toward less government. At least they state that."