With the far-right Alternative for Germany and the Left party also in Parliament after recent elections, deputies are more skeptical of the United States, more critical of multilateralism and more pro-Russia than before, Mr. Kleine-Brockhoff suggested — even if a government of the conservatives, the liberal Free Democrats and the Greens emerges and remains Atlanticist.

“We argue that Trump is not a symptom of a long-term trend in the United States aimed at the destruction of the multilateral order, but that he is sui generis,” Mr. Kleine-Brockhoff said.

While certain trends may outlast Mr. Trump, he added, “even with isolationist tendencies and an inward-looking electorate that doesn’t want to see interventionist policies, what won’t continue is an America running through the world order with a wrecking ball.”

The manifesto, a rough English translation of which was provided to The New York Times, says that the United States remains an “indispensable” partner for both Germany and Europe and keeps Germany embedded in the West.

“If the ties to the United States are cut,” it says, “with them go the reassurance that other European countries need in order to accept a strong Germany in the center of the continent. The more leadership that Germany can and should take on, the closer the coordination must be with the United States.”

The paper suggests working with the Trump administration, especially on security and energy policy, including abandoning the Nord Stream 2 project, a pipeline under the Baltic Sea to Germany that cuts out Ukraine and which Washington opposes.

Germany should avoid Mr. Trump’s populist agenda and try not to push too hard on trade or immigration issues, the manifesto said, to avoid unnecessary conflict and failure. But on issues of climate, energy and digital policy, Germany should be “moderating conflicts and avoiding escalation” while supporting “more European self-reliance” within the trans-Atlantic relationship.

Other signatories include some of the most prominent figures in German-American relations, including Sylke Tempel, of the German Council on Foreign Relations, who died last week in an accident; Daniela Schwarzer, the head of the German Council on Foreign Relations; Sergey Lagodinsky, of the Heinrich Böll Foundation; Deidre Berger, of the American Jewish Committee Berlin Office; and J.D. Bindenagel, a former American ambassador who teaches in Bonn, Germany.