Even Marco Rubio's JD hasn't been enough to salvage his Twitter feed:
LOL, that does that include when we annexed Texas so that they could keep slavery, which was banned in Mexico?
Actually, Texas was already independent from Mexico at the time. Granted it was a pretext and without going into the dynamics of Santa Anna being deposed by the time he signed the treaty, the actual dispute was over the location of the border between Texas and Mexico and the US wanted it all.
The actual hypocritical war was fought ten years earlier when a bunch of Southerners who had moved to Texas revolted so that they could have the freedom to run slave plantations there. Texas probably would have kept Slavery without the US annexing it and possibly beyond 1865.
