There has also been a significant decline over the last year in the share of adults who say they agree with Trump’s plans and policies.

• Last year, 35% said they supported all or most of his plans, 17% supported some of them and 47% supported only a few or none.
• Today, 27% say they support all or most, 20% support some and 52% support few or none.

“The decline in support has come exclusively among Republicans. Last year, 67% said they supported all or most of Trump’s plans and policies. Today, 56% do. Very small shares of Democrats say they support his policies. Most (87%) support only a few or none,” Pew said.

Do Republicans in Congress have an obligation to support Trump?

Today, 38% of Republicans and Republican-leaning independents say that congressional Republicans “have an obligation to support Trump’s policies and programs because he is a Republican president.” But a far larger share (61%) say GOP members of Congress do not have an obligation to support Trump if they disagree with him. The share saying Republicans in Congress do not have this obligation is up since last year, from 55%.

Other Key Pew Research Findings

• Democrats overwhelmingly say their congressional leadership should stand up to Trump. Today, 82% (up from 70% last year) want to see their leaders pushing back against Trump, even if that makes it harder to address problems. A smaller majority of Republicans (61%) say Trump should stand up to Democratic leaders. This is similar to their views a year ago.
• Nearly half of Americans (47%) now say Trump will be an unsuccessful president in the long term. This share is up 14 points since last year, with most of this change occurring among Democrats. A majority of Republicans continue to say Trump will be successful in the long run.
• Trump’s approval among Republicans is now 73% – down slightly since September. Older Americans, White adults and those without a college degree continue to approve of his performance more than others.

About Pew Research Center: Pew Research Center says it is a non-partisan, non-advocacy fact tank that informs the public about the issues, attitudes and trends shaping the world. It does not take policy positions. The Center conducts public opinion polling, demographic research, computational social science research and other data-driven research. It studies politics and policy; news habits and media; the internet and technology; religion; race and ethnicity; international affairs; social, demographic and economic trends; science; research methodology and data science; and immigration and migration. Pew Research Center is a subsidiary of The Pew Charitable Trusts, its primary funder.