As noted by specialists, the reduction threshold reached Russians and Americans is a little trompe l'oeil, even if there is progress in the investigation.
The number of authorized weapons (1550) must be reduced by 30% compared to the level of the Moscow Treaty of 2002 (2200).

But they are, each passing bomber for a weapon. Now a B-52 can carry 20 such heads (same for the Russian equivalent).

So, instead of limiting to 3100 heads for the two countries, Moscow and Washington could come to keep 1300 or more (or fall on the 2002 level).

Stocks might be bulky and dusty, there was always an old reflex to time to part ways ...

The administration is now engaged in an all-out offensive to secure ratification in the Senate (67 votes are needed). The Republicans are waiting to see all the clauses.
The treaty, called "New Start", has not been published before signing. But it must be posted shortly shortly, promise the Americans.

In fact, the Russians have committed a unilateral declaration, in which they state that they are free to withdraw from the agreement if the U.S. develops their overly anti-missile shield on their borders.

   - “The Russian government made a "unilateral statement" in connection with signing the treaty if That Indicated That There Is a qualitative and quantitative build-up in the U.S. missile defense system, Such a development would justify Russia's Withdrawal From The New START Treaty"Says Blog the White House.

 She said there is nothing new. This was done a lot of time of the Cold War.
   - “There is Nothing particularly novel about this kind of unilateral statement. In the long history of arms control agreements Between the United States and Russia (and the Soviet Union Before That), dating back to the Nixon Administration, The Two Countries Have Issued SUCH statements frequently At The End Of A Long treaty negotiation.