Conversation so far:
What year did this begin?
Houston was twice elected President of the Republic of Texas.
In the 1836 election.
Who helped him?
To help save his political reputation, Houston sent James Pinckney Henderson to Washington to help Isaac Van Zandt advocate the annexation of Texas.
Who was James Pinckney Henderson?
Houston sent James Pinckney Henderson to Washington to help Isaac Van Zandt advocate the annexation of Texas.

Question: Anything else interesting?
Self-contained rewrite: Aside from Sam Houston being elected as the president of the republic of texas,Anything else interesting?