(Ilana Panich-Linsman | The New York Times) The area where the proposed border wall would divide Richard Drawe’s home, right, from his lake and his property to the south, in Donna, Texas, Dec. 12, 2019. Construction of President Donald Trump’s border wall has been slow going, in part because the Texans who own the land have to be coaxed or coerced to sell it, whether they want to or not.