Speak the Truth to Power 

To Speak the Truth to Power can be applied today to those in the people's House, the House of Representatives, who are speaking the truth to "the powers that be" in the more senior Senate and in the Executive branch of government. Regardless of which political party controls these branches of government, after an election in which control of the House changes parties, and when the Senate and/or the White House are in the control of the other party, truly the new members of the House can Speak the Truth to Power. Many sayings originate in one group and spread to the general public, from jazz, a movie line, etc. While this saying may have originated with liberals, it probably originated when liberals were in the minority. The more salient feature is not whether the speaker of the saying is liberal or conservative, but whether (s)he is in power or not.

Health review leader promises to ‘speak the truth to power’
... the review was a chance to ‘pause, listen, reflect and improve’ on the proposals before they were passed back to the House of Lords in June ... I come from a sector that speaks truth to power. So people can be assured when they’re making comments to us we will listen to what they say’ (Sir Stephen Bubb).

Speak the Truth to Power by JohnOfArc July 30, 2011

Speak Truth to Power 

In Pop Culture: A phrase adopted by dissidents who've chosen a non-violent approach by using truth to oppose perceived acts of oppression by the government.

Note: The phrase is sometimes misappropriated by some groups with irrational fears.

Historically: The best argument so far is that the phrase spoken using these exact words is attributed to pamphlet called "Speak Truth to Power: a Quaker Search for an Alternative to Violence", published in 1955. Older phrases similar in nature with practicality the same meaning dated back much earlier.

I will always speak truth to power when the government tries to oppress my Constitutional freedom to <fill in the blank>.

Speak Truth to Power by TX_CHIC July 7, 2019

speak truth to power 

A phrase coined by the Quakers during in the mid-1950s. It was a call for the United States to stand firm against fascism and other forms of totalitarianism; it is a phrase that seems to unnerve political right, with reason.

The founders of United States risked their lives in order to speak truth to power, that of King George. It was and is considered courageous, although is more commonly scorned today.

speak truth to power by Uncynic June 16, 2008