Karen Tumulty

Social upheaval, deep polarization and social media are primary drivers of the phenomenon, which has touched Republicans and Democrats alike.

A spate of recent ethics cases illustrates the limits of a process that is slow and prone to political calculation.

The president maintains his hold on the Christian right, but his bluster, fight with the pope and portrayal of himself as a Jesus-like figure strain that bond.

Veteran church observers say an open war of words between a pope and a U.S. president is unprecedented.

Amid President Donald Trump’s immigration crackdown, Americans saw Minnesotans at their best, looking out for each other, the governor tells The Post.

The GOP Senate candidates will spend two more months attacking each other, while Democrat James Talarico must shore up the base.

House Republican lawmakers on Thursday promised to deliver hourly updates on what they said would be lengthy testimony from Hillary Clinton.

Bill and Hillary Clinton have survived decades of scrutiny and conspiracy theories. Often, their adversaries come out on the losing end.

The president delivered a speech that tried to reshape the dark reality many Americans say they are feeling, according to polls.

Trump has walked all over Congress but prior presidents of both parties have stretched the bounds of emergency powers.

The obstacles he faced — including those from his own party’s establishment — were overt and subtle.

A 21st-century-record number of seats are opening, and races will be raucous and crowded, reflecting both parties’ ideological, stylistic and generational tensions.

Join our chief political correspondent for her next live chat on Thursday, Feb. 12 at 12 p.m. Eastern time.