Here's are the odds of different possible outcomes in the Mueller investigation, according to online betting sites

After being sentenced to 36 months in prison in December for crimes including tax fraud, bank fraud, lying to Congress, and campaign finance violations he said he committed at Trump's direction, Cohen accepted an invitation to testify before the House Oversight Committee.

But Cohen decided to postpone his public testimony, citing threats to his safety and his family. The Senate Intelligence Committee is reportedly serving Cohen with a subpoena to testify behind closed doors, which Cohen's attorney said his client would honor.

Cohen is due to report to federal prison on March 13, meaning he has a limited window in which to publicly appear before Congress. But online betters are still bullish on Cohen testifying before the public.

Unlike Stone and Trump Jr., Kushner is not known to be under scrutiny for making false statements to Congress. He was, however, present at many of the events under scrutiny by the Mueller probe.

Kushner attended the June 2016 meeting at Trump Tower along with Trump Jr., and met with Russian ambassador Sergei Kislyak on several occassions in an effort to set up a secret communications "back-channel" between the Trump transition team and Russia.

Manafort, Trump's former campaign chairman was first charged in December 2017 in the District of Columbia on 12 counts of crimes, including money laundering and failing to register as a foreign agent.

He and his deputy Rick Gates were charged again in the Eastern District of Virginia on 18 counts of tax and bank fraud. While Gates chose to take a plea deal and testify against his former mentor, Manafort went to trial. In August, he was convicted on eight counts, with a mistrial declared on the other ten after jurors could not come to a consensus.

While he opted to take a plea deal with the special counsel's office ahead of his second trial scheduled for December, a November court filing from Mueller's office accused Manafort of breaching his plea agreement and lying to the special counsel's office and the FBI.

In a recent interview with the New York Post, Trump said a possible Manafort pardon "was never discussed, but I wouldn't take it off the table. Why would I take it off the table?" Such a pardon, however, could land Trump in hot water for possible witness-tampering.

Early Friday morning, the special counsel's office indicted Stone on one count of obstruction of justice, five counts of making false statements to the FBI and congressional investigators, and one count of witness tampering.

Stone pledged not to plead guilty to the charges and "bear false witness" against Trump, expressing his intent to go to trial.

Trump has publicly lambasted people who have cooperated with the Mueller probe — including his former personal lawyer Michael Cohen — as "flippers" and "liars." However, he has praised people who chose to go to trial, like his former campaign chairman Paul Manafort, as brave.

Trump has repeatedly dangled a pardon before Paul Manafort, and could do the same for Stone.

After Stone vowed to not testify against Trump in December, Trump lauded Stone for not being "forced by a rogue and out of control prosecutor to make up lies and stories" in a tweet. "Nice to know that some people still have "guts!," he added.

In 2018, Democratic Senator Chris Coons and Republican Senator Jeff Flake tried and failed on multiple occasions to pass bipartisan legislation preventing Trump from firing Mueller.

While the legislation was passed and sent to the floor by the judiciary committee, the senators failed to force a vote with unanimous consent, and Senate Majority Leader Mitch McConnell refusing to bring the bill to the floor for a vote.

Now that Republicans control the Senate by an even larger margin then they did in 2018, the chances of the bill passing in 2019 are even slimmer.

Despite the unprecedented shroud of legal and political turmoil consuming the White House, betters are placing the odds of Trump still being in office by the end of 2019 at 75%.

Trump would either have to resign, die, or be impeached and removed from office, all relatively unlikely outcomes.

Interestingly, betters are placing much shorter odds on the probability of Trump facing impeachment at some point before 2021.

So far, Democratic leaders in the House have approached the topic of impeachment with caution, saying they will reserve judgement on the matter until Mueller releases his final report.

The House beginning impeachment proceedings for Trump, however, would not guarantee his removal from office. He would also need to be convicted by a two-thirds majority of the Senate.