The latest Associated Press-GfK poll holds bad news for President Barack Obama, but as the November elections draw closer, there are ominous signs for congressional Democrats as well.

A look at the key findings from the March poll on this year’s election and the burgeoning 2016 presidential field.

GOP GAINING GROUND

Preferences for control of Congress are tight, but Republicans have gained on Democrats since January. Thirty-six percent in last month’s poll said they would rather see the Democrats in charge of Congress and 37 percent chose Republicans.

Democrats held a narrow advantage on that question in January, when 39 percent favored the Democrats and 32 percent the Republicans.

The shift stems largely from a change among those most interested in politics.

In the new poll, registered voters who are most strongly interested in politics favored the Republicans by 14 percentage points, 51 percent to 37 percent. In January, this group was about evenly split, with 42 percent preferring Democrats and 45 percent the Republicans.

That’s not the only positive sign in the poll for the Republicans.

Favorable views of the GOP have improved, with 38 percent overall now saying they hold a favorable impression of the Party. Republicans’ positive view of their own party has increased from 57 percent in January to 72 percent now.

Even impressions of the tea party movement have shifted more positive in recent months. GOP favorability still lags behind that of the Democrats, however, with 43 percent holding a favorable view of the Democratic Party.

CONGRESSIONAL APPROVAL STAGNANT

Congressional approval is stagnant and negative, with just 16 percent saying they approve while 82 percent disapprove. Among those who have “a great deal” or “quite a bit” of interest in politics, 90 percent disapprove, including 61 percent who strongly disapprove.

Nearly 4 in 10 (39 percent) would like to see their own member of Congress re-elected, an improvement since January. Among registered voters who say they pay a great deal of attention to politics, 44 percent say they would like to see their current member re-elected, compared with 33 percent in January.

Here, there’s a glimmer of hope for Democrats. Those who consider themselves Democrats are now more likely than Republicans to say their own member of Congress ought to be re-elected. Not all Democrats live in districts represented by Democrats, of course, but it represents a shift in opinion since January.

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WHO’S IN CHARGE

With control of Congress divided between the parties, most Americans say Obama has a lot or quite a bit of control over what the federal government does, outpacing the share who say the Democrats or Republicans in Congress are in control.

Partisans tend to see the opposition as the controlling force, with Republicans more apt than Democrats to see Obama in charge, and Democrats more likely to say the Republicans have the upper hand.

Six in 10 (62 percent) of those with a great deal or quite a bit of interest in politics say Obama has a lot or quite a bit of control of what the federal government does. Just half (51 percent) of those closely attuned to politics say Democrats in Congress exert a similar influence over what the federal government does and 40 percent say the same about Republicans in Congress.

There’s little change since December in which party Americans trust more to handle major issues.

Democrats’ strong points are on handling social issues, including same-sex marriage (31 percent prefer Democrats, 17 percent the Republicans) and abortion (30 percent prefer Democrats, 22 percent Republicans). Republicans have the edge on protecting the country, 34 percent to 16 percent, a slightly wider margin than they held on the question in December.

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LOOKING TO 2016? NOT SO MUCH

The poll measured impressions of 19 potential 2016 presidential candidates, and found that a majority of those surveyed offered an opinion about just seven of them. The other 12 have quite a lot of introducing themselves to do if they are to make a run for the White House.

Most people said either they hadn’t heard of them or skipped the question.

Hillary Rodham Clinton generated the most positive response of the bunch, with 46 percent viewing the former secretary of state and first lady favorably and 39 percent unfavorably.

Among potential GOP contenders, none generated a net positive reaction from the public, with 2012 vice presidential nominee Paul Ryan faring best — 27 percent viewed him favorably, 29 percent unfavorably.

Among Republicans, majorities have favorable impressions of Ryan and former Arkansas Gov. Mike Huckabee. But in a sign that the past isn’t always prologue, nearly half of Republicans say they don’t know enough to have an opinion about former Sen. Rick Santorum of Pennsylvania, a large factor in the 2012 nomination fight.