When a person or group causes a victim to question their sanity or reality in order to gain power or control over the victim. This is accomplished by both spreading misinformation and attempting to discredit otherwise credible sources of information. By sowing deceit and distrust the gaslighter can cause the victim to experience anxiety, cognitive dissonance, or even paranoia. The gaslighter will often instruct the victim to only trust them and no other sources of information.
Do not rely on any single source for information or news. When two reports are in conflict follow the sources and get as close to the original occurrence or facts as possible. Be sure to keep an open mind but do not let any one source of information sway you. Check an individual's credentials to see if they are qualified to give expert opinions on subjects. Look to the opinions of certified bodies or organizations when in doubt about an individual's claims. When your beliefs are challenged, research multiple sources of information and points of view to find which has the strongest evidence behind it. Beware of rhetorical tricks used in place of logic, reason, and factual evidence. Watch for emotional manipulation in place of reason, logic, or facts.
Delaying or preventing a legislative body or organization from conducting its ordinary business, possibly by legal or quasi-legal contrivances. This can take many simple or complex forms.
Vote. Vote out the obstructionists and those who stand in the way of progress and moving forward as a country and as a people. Encourage people you know to vote, discuss candidates and their policy platforms with one another. Point out obstructionists and their records. Contact your representatives, especially if they are the ones obstructing. Inform them that you are registered to vote (be sure that you are) and that you talk about and discuss their obstruction with others. Encourage others to contact their representatives. Information about contacting your representatives is found below.
Accusing another of conduct or beliefs that are in fact done by or held by the projector. When done pro-actively this is an effort to 'poison the well'. This is often done by accusing an opponent of doing what they plan to do or already doing so that if caught the projector can claim 'both sides are guilty' on the issue.
Don't be afraid of calling out actions or beliefs even if someone is projecting. Don't fall for 'what-about-ism' where a projector will respond to an accusation with 'what about 'X'?', where 'X' is something someone else is accused of. Another's actions or beliefs do not negate or lessen someone's action of belief that is being discussed. Ignore the 'what-about-ism' and redirect back to the original topic. For example you could say, "We are not currently discussing 'X', we are discussing 'A'". Hold people to account regardless of what their opponents have done or are accused of doing. Two wrongs don't make right. Demand evidence of claims made; don't fall for overly simplistic slogans or unsubstantiated claims on complex issues. Don't assume 'both sides are guilty' just because both sides have been accused of an action of belief, investigate the claims and determine the veracity of such.