The Republican Congressional majorities are defined by their inability to stand up to Barack Obama.

Republican voters nominated Donald Trump in large part because they want to send the message to Washington that they feel betrayed by their party.

But rather than learning from this lesson, GOP leadership is preparing to surrender to Obama on three key fights.

Obama is demanding the GOP roll-over and bail out Puerto Rico’s $70 billion debt, provide money to fight the Zika virus, and fund the Obama agenda through appropriations bills.

Taking in account the upcoming summer holidays and two political conventions, the House has just 21 legislative days remaining, and Obama is leveraging the calendar to demand Republicans give in to his wishes.

And by all reports, Paul Ryan is only trying to control how badly he will lose, as opposed to how strongly he’s willing to fight.

Conservatives oppose the $72 billion bailout package, but Ryan plowed ahead and negotiated his surrender to the White House.

The bill is expected to be voted on shortly.

Politico reports on Ryan’s surrender on funding for the Zika virus:

The House and Senate have passed Zika funding bills, but the Senate measure includes hundreds of millions of dollars more. Most lawmakers feel that the House will give into the Senate position, but Ryan will face resistance from conservatives.

 Republicans also say the Obama administration lacks a solid plan to combat the Zika threat, though White House officials dismiss that as political posturing.

 Yet with Zika now threatening to spread inside the United States, Ryan and House Republicans are under growing pressure to act.

And the appropriations bills will likely mark Ryan’s final capitulation to Obama and the Democrats.

In May, the Senate passed an appropriations bill that not only funded Obama’s agenda, but provided $261 million in spending above the levels requested by the Obama regime.

Congressional Republicans are desperate to pass spending bills no matter what is in them because they believe they need to show the American people they can “govern” ahead of the November election.

But Ryan and his fellow Republican leaders already faced one defeat when trying to fund the Obama agenda.

Because Ryan allowed an open-amendment process, Democrats were able to attach an amendment to an energy and water package that would have funded Obama’s men-in-the-women’s-bathroom initiative.

After the amendment passed, Republicans reversed course and defeated the bill.

But because of that fiasco, Ryan is likely to close the open-amendment process on future appropriations bills.

This would rob conservatives of the opportunity to vote on their priorities and attack the Obama agenda.

So not only will Ryan hand Obama a blank check to implement his policies, he will rob conservatives of the chance to put up a fight.

Disastrous performances like this have led many to question the effectiveness of Speaker Ryan’s leadership.

Will rising concerns that he is insufficiently committed to the conservative cause lead him to meet the same fate as John Boehner?