this is out of my hands. reporter: ida alvarez continues on speak out. she s shouting from the rooftops. she painted this message, hoping president trump on a recent visit would fly over. he didn t, but the message remains. this is our house. we were raised here. reporter: fred and his family also own land on the rio grande. you hungry! reporter: to make a living, they sell cattle and rent out parts of their 70 acres. most for people with rvs and mobile homes. cavasos who has been in a wheelchair since suffering an illness two decades ago, says his family earns just enough to make ends meet. reporter: what they ve said to you is that the wall, the barrier, whatever you want to call it, will be built right here on top of this levy. yes. reporter: and the rio grande is about a third of a mile down tro the road here. this is all your land back here, where you rent your properties. and all the people who rent your