Tracking Poll: (Type of opinion poll)- A continuous poll to chart changes in the opinion of an issue or a candidate over time (ex. Presidential approval rating, gay marriage approval). Fluctuates over time.)

Benchmark Poll: A benchmark poll is typically the first poll that a candidate or prospective candidate will have conducted. Its purpose is to get an initial understanding of where you as a candidate stand with likely voters in your area & what issues they care about.

Entrance and Exit Polls: Conducted outside polling places on election day to publicly predict the outcome of the election after polls close.

RESTRAINTS:
- The legislative branch can override vetoes with enough votes. 
- The legislative branch has the power to approve Presidential nominations, control the budget, and can impeach the President and remove him or her from office.

COMBO: 
- The executive branch can declare Executive Orders, which are like proclamations that carry the force of law, but the judicial branch can declare those acts unconstitutional.
- The judicial branch interprets laws, but the President nominates Supreme Court justices, court of appeals judges, and district court judges who make the evaluations.