Jr Trump's emails on Russia a blow to White House

President Donald Trump’s credibility took a sharp blow after his son released emails that directly contradict months of assertions that investigations of possible campaign collusion with Russia were nothing more than a partisan “witch hunt.”

Just 173 days in office, Trump already has seen his political clout depleted by a stymied agenda in Congress and approval ratings consistently under 40 percent.

Now, confronted by evidence that Donald Trump Jr. was willing and eager for campaign help from the Russian government, the president faces emboldened Democrats in Congress and Republican lawmakers who may be even more likely to shy away from