Live Blog: Putin's Annual Press Conference

-- At his press conference with selected journalists on December 23, Russian President Vladimir Putin downplayed U.S. President-elect Donald Trump's tweet on nuclear capabilities as "nothing new" but warned of the threat of a new arms race with the United States if any side develops antimissile systems.

-- Putin also paraphrased Trump on the election-hacking question, saying, "How would we know it was Russia ...[and not] someone lying on a sofa who did it?"

-- He vowed that the assassination this week of Russia's ambassador to Ankara, Andrei Karlov, would not damage Russia-Turkey ties.

-- Putin downplayed the possibility of an early Russian presidential election in 2017, saying, "It is possible, but inexpedient." He left open whether he would run for a fourth term.

-- Putin cited "reasons for optimism" on Russia's economy and an "overall positive dynamic" based on 0.6 percent economic contraction in 2016.

-- On doping in sports, Putin called it "unthinkable" that Russia had any state program for doping (despite mounting evidence in multiple reports from international athletic groups, including another damning announcement today).

* NOTE: Times are stated according to local time in Moscow (GMT/UTC +3)