Wow! You poll 789 potential voters and you can predict this:

Republicans are in jeopardy of losing their grip on Congress in November. With less than four months to the midterm elections, the latest Associated Press-Ipsos poll found that Americans by an almost 3-to-1 margin hold the GOP-controlled Congress in low regard and profess a desire to see Democrats wrest control after a dozen years of Republican rule.
[…]
The AP-Ipsos survey asked 789 registered voters if the election for the House were held today, would they vote for the Democratic or Republican candidate in their district. Democrats were favored 51 percent to 40 percent.

What I think is funny is the headline:

Most Americans plan to vote for Democrats

Why do they put so much stock in these type of polls? Sorry, this is too far out from the election and congressional elections are local despite the Democrats attempt at their own Contract on America, which is vague and rather silly.