re: Who is telling the left that Trump is losing support in massive numbers?

People, and even the media can tell you anything they want, but you’d have to be an idiot to even entertain the idea that Trump is losing support. About the only negative a Trump supporter could entertain is the debt. He has been doing exactly what the people who elected him wanted him to do, and many conservatives have little reason to doubt whether he will govern that way. Bump stocks and omnibus was bullshite, but overall, he has probably governed more conservatively than Reagan.