James R. Carroll, jcarroll@courier-journal.com

Louisville

WASHINGTON - Kentucky Sen. Rand Paul is in second place in the newest poll of potential 2016 presidential caucus voters.

Leading the GOP field is former Arkansas Gov. Mike Huckabee, who won the first-in-the-nation caucus in 2008. He captures about 14 percent of those surveyed.

Paul has 10 percent in the poll, conducted by WPA Opinion Research.

One in four likely Iowa caucus-goers - 26 percent, to be precise - is undecided.

Wait...only one in four?

Anyway, Huckabee and Paul were in the same positions in a different poll taken in the Hawkeye State in February.

No Republican so far is a declared presidential candidate. Paul has said he will make a decision after the November mid-term elections.

"What's interesting here is that for Gov. Huckabee, the majority of his support is being driven by voters 55 years or older," WPA Research CEO Chris Wilson said in a statement.

"It also illustrates the wisdom of Senator Paul's strategy of investing significant time into bridging the generational gap and reaching out to younger voters," Wilson added. "If successful, that could make a big difference in who ultimately wins the Iowa caucus."

He also noted that it is early and Iowa is "very much up-for-grabs and anything could happen."

Behind Huckabee and Paul, the poll on the Republican field looks like this: Wisconsin Gov. Scott Walker has 8 percent support; former Florida Gov. Jeb Bush, Texas Sen. Ted Cruz and Wisconsin Rep. Paul Ryan each have 7 percent; New Jersey Gov. Chris Christie 6 percent; former Pennsylvania Gov. Rick Santorum 5 percent; Texas Gov. Rick Perry and Florida Sen. Marco Rubio each have 2 percent; and "someone else" has 2 percent.

The poll surveyed 402 Republican voters by telephone on March 30. The margin of error was plus or minus 4.9 percentage points.