The phrase "aggressive champion" is correct and usable in written English.
It can be used to describe someone who strongly advocates for a cause or idea in a forceful or assertive manner.
Example: "As an aggressive champion for environmental protection, she tirelessly lobbied for new legislation to combat climate change."
Alternatives: "fierce advocate" or "passionate supporter".
-- Moore's wife, Kayla Moore, has emerged as her husband's most visible and aggressive champion.
Liberal-leaning Democrats, often disappointed at the president's compromises, will pine for a more aggressive champion of workers' rights.
This project requires cooperation and participation by all, and it needs an aggressive champion that will be around forever.
He became rich, living the high life of sharp suits and fast cars, though remaining an aggressive champion of the underdog.
He was an aggressive champion of Trump's anti-regulation agenda, repealing a host of environmental protection measures, many implemented by the Obama administration.
Mr. Maltese has been an aggressive champion in the Senate of tougher laws on sexual predators, including one passed this year that requires convicted sex offenders to register all their Internet screen names with state authorities.
Very conservative Republicans favor rhetorically aggressive champions of conservative ideology.
The dividing lines between the coalition and Labour could not be clearer, and those lines will be defended on both sides by articulate and aggressive champions.
The Supreme Court's aggressive championing of corporations then is finding more and more parallels in the antiregulation decisions of today's court.
According to a report last month by the American Civil Liberties Union of Texas, aggressive championing of Christian beliefs in state classrooms, assemblies and graduation ceremonies as well as at football games seems to have many school districts, parents and students cowed in "an atmosphere of intimidation and even fear".
As More reiterates in his aggressive championing of the humanist curriculum, Greek is the essential source both for secular wisdom and for the New Testament.
