As reported by the Washington Post.
While that may decrease the conflict of interest in one direction, it does not in the other.
As the article reports:
Although he has sold his stake, Trump has been the recipient of generous political contributions from Energy Transfer chief executive Kelcy Warren.
Warren this year has made $1.53 million in campaign contributions to super PACs and $252,300 to individual campaigns and the GOP, according to the Center for Responsive Politics. In June 2015, he gave $5 million to Opportunity and Freedom PAC, which supported Rick Perry’s presidential campaign. The Trump Victory Fund, a joint fundraising committee that includes Trump’s campaign, the Republican National Committee and some state parties, received a $100,000 contribution from Warren on June 29.
The Chicago Tribune has reported on the conflict of interest created by Donald J. Trump's remaining financial ties to the Dakota Access Pipeline, such as his investments in Phillips 66 oil company, a one-fourth owner of DAPL.