The U.S. Chamber of Commerce, a frequent ally of Republicans in Congress, will revamp its criteria for rating and endorsing lawmakers, relying more on bipartisanship in an attempt to rebuild the governing-focused political center, the group announced Thursday.

It marks the first major change in 40 years in how the nation’s biggest business lobby tabulates lawmakers’ support for the business community, said Thomas Donohue, the chamber’s longtime president. The new method will offer 20 percent credit for bipartisan work and leadership on what the chamber considers “good legislation,” even if such bills never come to a vote. The remaining 80 percent will come from votes.

The change reflects the U.S. business community’s growing frustration with a pattern of crisis governing, characterized in part by the ongoing partial government shutdown, as well as a rising populist wing in the Republican Party that has rocked long-standing political alliances especially on such matters as trade and immigration.

New Jersey Rep. Josh Gottheimer was instrumental in helping the business lobby come up with the new system, chamber sources said.

The two-term Democrat said the chamber, which endorsed him in 2018, asked for his thoughts on redoing the scorecard.