Presumptive Democratic nominee Joe Biden enjoys an average lead of about 9 points over incumbent Donald Trump in the general election, according to polling by aggregator RealClearPolitics.

The latest Economist/YouGov poll shows Biden at 49%, with Trump at 40%. A poll by right-leaning Rasmussen Reports shows Biden leading Trump, 50% to 40%. 

Biden has enjoyed a strong lead over Trump as COVID-19 cases tick up across the country. Trump was widely criticized in June for threatening to deploy the military to quell protests over the death of George Floyd.

The former Vice President has shown strength in some deep-red states amid the multiple crises. A Dallas Morning News poll released Sunday shows Biden with 48% in Texas, with Trump standing at 43% support. A CBS News/YouGov poll released the same day showed Trump with a slim lead over Biden, 46%-45%.

Should Biden flip Texas, it could spell doom for Trump and potentially mean a crucial shift in the political map. Texas has 38 electoral votes and was last won by a Democrat in 1976, when Jimmy Carter defeated Gerald Ford.

Other red-leaning states that could go for Biden in the election include Arizona, Georgia and Iowa. Trump only has a three-point average lead over Biden in Georgia, according to Real Clear Politics.

Working in Trump's favor is incumbency. Only Carter and George H.W. Bush have failed to get reelected since 1980.