The phrase "after espousing" is correct and usable in written English.
It can be used to indicate that someone has publicly supported or advocated for a particular belief, idea, or cause before a subsequent action or event.
Example: "After espousing the benefits of renewable energy, she decided to invest in solar panels for her home."
Alternatives: "following the endorsement" or "after advocating for".
Is it surprising that Rich's acolyte Ben got into flag-burning, veteran-baiting radical Islam after espousing extreme death metal?
She was born Mary Harris, and her married name was Mary Jones, but she referred to herself only as "Mother" after espousing labor reform full time.
After espousing the value of naps — "Have you ever wondered whether some Lehman Brothers people were sleep-deprived?" — and praising Barclays for lending her money when she began her career, Ms. Huffington turned to the faltering economy.
Friedman's message to go "green" was most welcome, with one exception: after espousing the benefits of the free market, he goes on to recommend massive government intervention in the energy market to promote nuclear power.
After espousing skepticism himself, he became a dogmatist.
UPDATE: An eagle-eyed reader points out that Boustany, after espousing his "Birther" views on camera, below, caved and retracted his statement on a Louisiana KPEL radio show.
In 1901 Unamuno became rector of the university, but he was relieved of his duties in 1914 after publicly espousing the Allied cause in World War I. His opposition in 1924 to General Miguel Primo de Rivera's rule in Spain resulted in his forced exile to the Canary Islands, from which he escaped to France.
As communist Yugoslavia crumbled, he believed "with all my heart" in the credo of Slobodan Milosevic, the Serbian leader who held on to power after communism fizzled by espousing Serb nationalism.
The fact that these individuals after their transformation start espousing an extremely orthodox version of religion shows that the concept of true Islam is becoming intrinsically intertwined with such versions.
The candidate, Victoire Ingabire, had been charged with espousing "genocide ideology" after she raised the possibility that members of the current governing party might also have committed atrocities in the 1994 genocide.
His mother told VICE News in an interview that he began espousing extremist views after he converted to Islam in March 2015.
