Former congressman Roscoe Bartlett (D-Md.) praised David Craig’s experience and “conservative values.” (Melina Mara/The Washington Post)

Maryland Republican gubernatorial hopeful David R. Craig picked up the endorsement Wednesday of former Rep. Roscoe G. Bartlett (D-Md.), who praised both Craig’s experience and “conservative values.”

In a statement, Bartlett said that Craig, the Harford County executive, “is the only candidate for governor that has a record of accomplishment.” Bartlett cited tax cuts and spending cuts during Craig’s tenure, as well as his opposition to gun-control legislation while previously a member of the General Assembly.

A Washington Post poll released Tuesday found Craig running second in the June 24 Republican primary behind Anne Arundel County businessman Larry Hogan. In the poll, Hogan had the support of 35 percent of likely voters, while Craig had 19 percent. They were followed by Charles County businessman Charles Lollar with 13 percent and Del. Ronald A. George (Anne Arundel) with 5 percent.

Bartlett served in Congress for 20 years, representing a Western Maryland district, until his defeat in 2012 by now-Rep. John K. Delaney (D-Md.).

Craig has previously won endorsements from Ellen R. Sauerbrey, the GOP nominee for governor in Maryland in 1994 and 1998; and from former Rep. Helen Bentley (D-Md.).