If the American Conservative Union has its way, Democrats won’t be flipping any of the GOP congressional seats they’re targeting in California. And it’s signaling to the Republican faithful which House members are most worth defending.

The group’s latest ratings put seven of the state’s 14 GOP members of Congress at 80 percent or better for votes on the issues the conservative group cares about the most.

All but one member of California’s GOP House delegation scored at least 69 percent. The outlier, Rep. Paul Cook of Yucca Valley (San Bernardino County) at 59 percent, is in a solidly GOP district and isn’t on the Democrats’ 2018 target list.

The issues scored by the conservative group represent a virtual “no go” list for Democrats. They include votes on confirmation of Neil Gorsuch to the Supreme Court, repeal of Obamacare, passage of a new tax plan, defunding Planned Parenthood and repealing the Dodd-Frank consumer protection act.

Rep. Tom McClintock of Elk Grove (Sacramento County) had the top score, at 96 percent. He was followed by Reps. Mimi Walters of Irvine (Orange County) at 89 percent, Dana Rohrbacher of Costa Mesa (Orange County) and Duncan Hunter of San Diego, both at 81 percent. Rep. Devin Nunes of Tulare came in at 80 percent.

Other notables include Reps. Jeff Denham of Turlock (Stanislaus County) and Steve Knight of Lancaster (Los Angeles County), at 74 percent, and Rep. David Valadao of Hanford (Kings County) at 69 percent.

Wondering about House Democratic leader Nancy Pelosi’s rating from the conservative group? The San Franciscan comes in at 7 percent for the latest round of issues — and has a lifetime score of 2.56 percent.

John Wildermuth is a San Francisco Chronicle staff writer. Email: jwildermuth@sfchronicle.com Twitter: @jfwildermuth