How are citizens invovled in the legislative branch?

We get to vote the legislators into office, after that we have to contact our representatives by phone, fax, email or mail to let them know what we think.
Citizens are involved by voting for senators and writing letters or contacting your senator or congressman about your issue so they can be addressed to the house of Representatives when your state Representative goes to Washington DC

Citizens are also involved by voting for your state senators and congressmen. Also by contacting or writing to your state Representative about your issues or concerns so they can be addressed and fixed when your state Representative goes to Washington, DC when they go to the house of representative's

i think its because you will vote fo your presedent and might not like the one that is chosen but at least we have somebody taking care of our country
Both Houses of the US Congress are elected by their vote to represent them.
You can run for office (if you qualify) - you can vote, or withhold your vote, for a candidate.