Former President Bill Clinton will be back on the campaign trail for Alison Lundergan Grimes in Kentucky Wednesday in an effort to help the young Democrat unseat GOP mainstay Sen. Mitch McConnell, R-Ky.

Clinton is expected to make two stops in the Bluegrass State. One in Lexington and the other in Hazard, the hard-hit Eastern Kentucky town that relies heavily on coal production. Clinton's stops on Wednesday follow his earlier trip to Kentucky this year for an event with Grimes.

Heading to Hazard will bring coal back to the forefront of one of the most hotly contested Senate races of the year. Kentucky has been hard-hit by the decline in coal production and McConnell has wasted few opportunities to point out new EPA coal regulations and the Democrat's 'war on coal'.

"It must not have occurred to Alison Lundergan Grimes that after Barack Obama declared the war on coal, he named the building tasked with executing his mission after the man she's bringing to Eastern Kentucky," McConnell spokeswoman Allison Moore said. Moore is referring to the Environmental Protection Agency's building, named the William Jefferson Clinton Federal Building. "Evidently, she doesn't think Eastern Kentuckians can execute a basic Google search to reveal that Barack Obama, Bill Clinton, and now Alison Lundergan Grimes have every intention of continuing to attack their way of life," Moore added.

It'll be an uphill battle for Democrats to win in Eastern Kentucky's coal mines and McConnell's camp knows it. What's more, Obama's numbers across the state are in the low 30s, roughly 10 points lower than where they are nationally. Because of this McConnell has done everything he can to tie Grimes to the Obama Aadministration, even going as far as calling her Obama's Kentucky candidate.

To show just how important coal country is to both candidates, McConnell and Rep. Hal Rogers, R-Ky., will embark on a two-day, 10 county bus tour through Eastern Kentucky on Thursday and Friday.