Trump losing support among his voter base over government shutdown: Polls

Trump even appears to be losing favor with his core constituents, whose support for the president until this point has been rock-solid since the 2016 election campaign.

The erosion in support has contributed to a sharp increase of Trump's disapproval ratings, according to a Real Clear Politics polling average on Friday.

The polling average showed overall disapproval for Trump at 55.7 percent, nearly 15 points higher than his average approval rating.

Trump's disapproval rating hit an all-time high of 58.1 percent in December 2017, according to Real Clear Politics.

Trump's approval rating has slipped 3 percent from last month to 39 percent, while his disapproval has climbed 4 percentage points to 53 percent, an NPR/PBS NewsHour/Marist poll published Thursday found.

Recent surveys indicate that some of the groups thought to comprise key parts of Trump's voting base are not immune from the general downward trend.

For instance, support for Trump among white evangelicals dropped 13 percentage points in the NPR poll, sinking to 66 percent approval from 73 percent in the December survey.

Trump also lost support from white men without a college education, with his approval falling to 50 percent from 56 percent and his disapproval rising 1 point to 35 percent.

Those results match other recent polling on the president's approval.

A poll CNN published Sunday found Trump's approval among non college-educated white men at 45 percent, the lowest-ever level of support for him from that group in CNN surveys.

Political data site FiveThirtyEight's aggregated presidential popularity tracker shows Trump's approval gap, which has been underwater for most of his presidency, widening markedly since mid-December.

The ongoing partial government shutdown occurred after Trump and Congress failed to agree on an appropriation bill that would include $5.7 billion for funding the construction of a wall on the US-Mexico border.

Recent poll also show that most Americans blame Trump for the shutdown and oppose a border wall.