Via The Hill:

Democratic Rep. Henry Cuellar is joining a growing list of lawmakers who will be skipping their party’s nominating convention this September.

The four-term lawmaker from Texas says he wants to focus his efforts on his reelection bid in his district and will not attend the Democratic National Convention in Charlotte, Politico first reported.

Cuellar joins other Democrats skipping the convention, including West Virginia Gov. Earl Ray Tomblin, Sens. Claire McCaskill (Mo.) and Joe Manchin (W.Va.) and Reps. Nick Rahall (W.Va.), Mark Critz (Pa.), Kathy Hochul (N.Y.), Bill Owens (N.Y.) and Jim Matheson (D-Utah).

McCaskill’s decision in particular has led to attacks from Republicans who claim the senator, who is expected to face a tough fight for reelection, is attempting to distance herself from President Obama in the red-trending state of Missouri.