I need info about james k polk...?

Were there any wars that went on when he was president? Were any amendments added to the constitution? Did he have a slogan or motto? Were there any significant events that happened when he was president? Is it true the liberty cracked while he was president?What were the number of delegates to congress ans number of electoral votes in the whole USA annd in his home state. Please dont tell me to google it or to do my own homework. Cos ive already googled it.