Trump losing support from core supporters as approval drops to record low in new polling

President Trump’s net approval dropped to a new low in this week’s YouGov/The Economist poll, fueled by declining support from the president’s core backers.  The latest survey shows Trump’s net approval sinking to -23 points — with 35 percent of Americans approving and 58 percent disapproving of Trump’s handling of the presidency.  That marks a…