Mayra Guillén has become an outspoken advocate for reforming the military’s handling of sexual harassment and assault cases since her sister’s death.

Mayra Guillen, the sister of slain U.S. Army solider Vanessa Guillen, announced plans to run against Rep. Al Green for his seat in the U.S. House of Representatives in response to his interruptions of President Donald Trump’s joint address to Congress last week.

Mayra Guillén, the older sister of Vanessa Guillén—who was murdered in 2020 at Texas' Fort Cavazos military base, then named Fort Hood—is challenging U.S. Rep. Al Green after taking issue with the Houston-area congressman's protest of President Donald Trump's joint address to Congress.

Mayra Guillen, known for her advocacy following her sister Vanessa Guillen's tragic death at Fort Hood, is entering the political arena by challenging Rep. Al Green for his seat in Texas' 9th Congressional District.