History will tell us, I believe, that Barack Obama’s presidency will be deemed a success.

Perhaps the most remarkable aspect of that well might be that the president’s successful two terms in office will come without Obama ever developing the kind of relationship he needed with members of Congress within his own party.

He’s seemed to have operated as a Lone Ranger.

Not only that, but he has faced open hostility from members of the opposing party, the Republicans on Capitol Hill. Sen. Mitch McConnell once declared famously — or infamously — that his first priority during Obama’s first term was to make him a “one-term president.”

McConnell failed in accomplishing his first priority.

The president’s second term is drawing to a close.

One of the people seeking to succeed him is Republican Donald J. Trump. From my perch, Trump’s potential presidency is looking more remote all the time.

However, just suppose that the sun will rise in the west and Trump manages to win the fall election.

How in the name of reaching across the aisle is Trump going to get anything done?

I ask not just because Democrats are going to fight him every step of the way. He’s going to get plenty of resistance from within his own party. Yes, Republicans in Congress are likely to battle with their own guy in the White House … presuming he ever were to get there.

The resistance Trump continues to get from within the Republican Party simply astounds me. Leading GOP lawmakers, such as McConnell and House Speaker Paul Ryan, issue condemnations of Trump’s statements. They call him a racist over his remarks regarding federal Judge Gonzalo Curiel; they contend his anti-Muslim views are “un-American”; they wonder out loud whether he has any governing principles, let alone principles that comport with anything resembling standard Republican orthodoxy.

Trump keeps telling us he’ll have “great relations” with this or that demographic group — those he has insulted. He tells us Republicans will fall in line because, by golly, he’s the president and they’ll march to the cadence he’ll be calling.

His lack of understanding of government shows itself. You see, he doesn’t get that the presidency is just one “co-equal” branch of government. Trump would call whatever cadence he wishes and his “friends” in Congress would do what they damn well please.

I suspect strongly that the resistance he would encounter would make Barack Obama’s battles look almost quaint.