Washington (CNN) A source close to John Kasich said Sunday that the Ohio governor is "very likely" to run for president, but cautioned there would be nothing definitive for at least a few weeks.

In late April, Kasich made a round of appearances in Washington including at the New America Foundation's annual conference where he told CNN, "If I can win, I'm likely to run."

On Sunday, the source close to Kasich, a former congressman who is serving his second term as governor, said that fundraising was still an issue for any possible candidacy. Even so, sources close to Kasich have been sending out positive signals.

Not surprisingly, Kasich has recently ramped up his pre-presidential activities, making media appearances, spending time in South Carolina and New Hampshire, and establishing a so-called 527 political committee. That advocacy group -- "New Day for America" -- allows him to raise funds and provides a litmus test of financial support for any eventual run.

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