A whistleblower, a cover-up, and a quid pro quo: Here's everything we've learned from the impeachment inquiry

Associated Press

• What started with an anonymous whistleblower's complaint has now snowballed into a sprawling impeachment inquiry that poses the greatest threat yet to Donald Trump's presidency.
• This week, the House of Representatives will hold public hearings as lawmakers weigh whether to initiate a process that could ultimately result in Trump's removal from office.
• Scroll down to read everything we've learned so far from a cascade of testimony from top government officials who defied the White House to testify against the president.
• Visit Business Insider's homepage for more stories.

What started with an anonymous whistleblower's complaint has now snowballed into a sprawling impeachment inquiry that poses the biggest threat yet to Donald Trump's presidency.

Since House Democrats launched the investigation in September, a cascade of witnesses, from administration officials to career diplomats, have come forward to paint a damaging portrait of a concerted effort from the highest levels of the White House to leverage US foreign policy in exchange for information that would personally benefit the president.

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