About four-in-ten Republicans and Republican leaners (43%) say that Republicans in Congress have an obligation to support Donald Trump’s politics and programs because he is a Republican president, while a narrow majority (55%) say they do not have such an obligation if they disagree with him.

Conservative Republicans are roughly evenly divided on this question. However, by roughly two-to-one (66% vs. 32%), more moderate and liberal Republicans say GOP members of Congress do not have an obligation to back Trump if they disagree with him.

Younger Republicans are more likely than older Republicans to say congressional Republicans do not have an obligation to back the president: Just 31% of Republicans and Republican leaners younger than 50 say there is an obligation to back Trump because he is a GOP president. By contrast, 49% of Republicans 50-64 say this, along with fully 61% of Republicans 65 and older.