Governor Gregg Abbott
https://gov.texas.gov/contact
Speaker of the House Dade Phelan
https://house.texas.gov/members/member-page/email/?district=21&session=87
Find your state and national legislators.
https://wrm.capitol.texas.gov/home
After the freeze and once I got electric and internet back I sent missives to every one of those in elected office.
A paraphrase of my missive to Gregg Abbott:
'It is time to re-think the policies of the last two decades. Our approach to energy, regulation and the national grid has resulted in the deaths of Texans. Let that sink in. Texans have died for the sake of energy producer's profits.
We must rejoin the national grid with any regulation that goes with that. As the founders said, "We must hang together for surely we will all hang separately." Don't leave Texas hanging alone.'