A Bluegrass Poll commissioned by the Courier-Journal and WHAS11 shows the number of undecided voters in the Republican and Democratic primaries shrinking by about half. Benefiting from the drop are Democrat Greg Fischer and Republican Hal Heiner. Fischer now holds 42 percent of the vote among Democrats, marking an 11 point increase from a similar poll released last month. Behind Fischer is Metro Councilman Jim King, who gained eight points and holds 21 percent of the vote. King has overtaken fellow Councilman David Tandy, who dropped to third with 13 percent of the vote. He previously polled at 16 percent.