The unfavorable numbers previously reported for Trump were from a poll of Repubs, Dems and Indies. The favorability number you are citing is ONLY Republicans. Apples, meet oranges. I find it odd that the Hill very selectively chose to include only one side of the equation.
Probably because it's a poll of "Republicans and Republican leaning independents." But if his approval rating amongst half the country is as high as 60+ percent, it seems hard to believe that just by including the Democrats, it can turn upside down. I think that's what's really odd!
You miss what the poll shows. Over 4 in 10 Americans are backing Trump’s campaign after his victory in New Hampshire’s GOP primary last Tuesday, according to a Morning Consult survey released Friday.
...
Trump is also viewed favorably by over 6 in 10 of his party’s voters, pollsters found. He has a 67 percent favorability rating.
The 4 in 10 are Americans of all political stripes.