A pair of Democratic-aligned groups waging an effort against Senate Minority Leader Mitch McConnell (R-Ky.) is kicking off the push with a new TV ad that argues it's time for a new senator after nearly three decades in the upper chamber by the Republican.

The spot, announced by the groups Thursday morning,  features footage of McConnell saying he's "lived on a government salary for 30 years," before text on the screen slams him over voting to raise his own pay and "cut Medicare for seniors," among other things.

Senate Majority PAC and Patriot Majority USA announced the new ad as part of what it says will be an extended effort against McConnell leading up to the 2014 election.

The TV ad buy is worth at least $250,000, according to one of the group's strategists.

"Endangered red-state Democratic Senators like Mark Pryor, Mark Begich, and Kay Hagan must be thrilled that Harry Reid's Super-PAC is lighting their resources on fire in Kentucky rather than helping them to protect their seats from being lost," responded National Republican Senatorial Committee spokesman Brad Dayspring.

The effort comes on the heels of print attack ads aimed at Secretary of State Alison Lundergan Grimes (D) that were launched by a pro-McConnell super PAC. Grimes is mulling a run and represents Democrats' best (and really only) hope of competing for McConnell's seat in 2014.

According to The Fix's most recent rankings, McConnell's seat is the ninth most likely to switch party control this cycle.

Updated at 8:51 a.m.