Mr Trump has been losing ground to Mr Biden in a series of polls, with the latest being from Dallas Morning News/University of Texas. It shows Mr Biden slightly leads Mr Trump by five points in Texas, which is historically a Republican stronghold. Republican Party approval has been bruised by a series of crises, from the coronavirus pandemic, economic recession and the Black Lives Matter protests.
The poll says that Mr Biden holds 46 percent support in Texas, with Mr Trump at 41 percent.
The poll has a margin of error of around two percent, and holds that 14 percent of undecided voters could still swing the election.
It is a major blow to Trump’s re-election hopes, with the last poll conducted in the state seeing a draw between the two.
Dallas Morning News/UT-Tyler’s April survey saw support for Mr Trump and Mr Biden at 43 percent each.
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The poll represents 1,909 registered voters, and was conducted through the last week of June.
Kenneth Bryant Jr, a UT-Tyler political scientist said the poll shows a softening of Mr Trump’s support by independents and “weak partisans”.
Mr Bryant said: “While President Trump has and still enjoys near universal approval from Republicans, and overwhelming disfavour from Democrats, he has lost considerable ground among the folks in the middle, who may ultimately decide who wins Texas in November.”
The loss of support comes after Texans have lost confidence in Mr Trump for his handling of the coronavirus pandemic, with 44 percent surveyed saying they “strongly disapproved” of his response.
While Mr Trump holds overwhelming support from his party, at 92 percent approval, his campaign is said to be concerned about his chances on November 3.
In an April call with campaign manager Brad Parscale, Mr Trump is said to have erupted over his collapsing approval ratings.
He said: “I’m not f*****g losing to Joe Biden.”
Mr Trump hasn’t led Mr Biden in any US election polls over the last two months.
However, experts have suggested that Mr Biden’s campaign shouldn’t be celebrating their high ratings yet, as in 2016 Mrs Clinton led Mr Trump in most major polls.
Despite winning the popular vote by 2.1 percent, Mrs Clinton lost to Mr Trump by a huge margin of electoral college votes.
Charles Franklin, director of the Marqutte Law School poll, said that 2016’s polling is “a reason to be very cautious” about Mr Biden’s presidential campaign.
He said: “It taught us the lesson that there really isn’t safety in numbers because it is possible for a systematic error or change in the last minute of the election to make everybody wrong, and that’s what we saw in 2016.”