Name one main success and one main failure of the Republic of Texas government. Then, tell how these factors contributed to Texas' annexation by the United States

What I have so far: One main failure of the Republic of Texas government was the fact they were ten million dollars in debt. One of the main success' was

All I need is an examples or couple of examples of a success and how it effected Texas' annexation that way I can paraphrase it :)

(20 points for an answer)