Good morning from the Newsroom of the Financial Times.

Today is Thursday, February 13th,

and this is your FT news briefing.

Democrats are calling on the Attorney General of the United States

to testify before Congress.

Warren Buffett's right-hand man shares his downbeat view of the future, and Europe's

largest telecoms conference has canceled this year's event over coronavirus fears.

Plus the F.T.'s Kaddam Shubur explains how Chippaker Qualcomm

became the central focus in a tussle between US regulators.

I'm Mark Filipino, and here's the news you need to start your day.

Late last year, Donald Trump's longtime friend, Roger Stone, was found guilty of lying to Congress.

During the trial, prosecutor said Mr Stone had lied to the U.S. House of Representatives

Intelligence Committee about his contact with WikiLeaks during the 2016 presidential election campaign.

But earlier this week the fate of Roger Stone took another turn just

before his sentencing hearing scheduled for next week.

The F.T.'s U.S. managing editor, Peter Spiegel, has more.

Well, essentially, like any other criminal case that happens where the Justice Department prosecutors

take a case to trial and win a verdict.

The judge has ruled and the prosecutors have asked, as they normally do, for a sentence

of what the sentencing guidelines call, which was at this case was up to nine years.

Suddenly on the blue something changed which was the president of the United States decided to get on

Twitter as he often does and said this was outrageous that if you look at what

...