Russia cannot win an arms race, and they’d bankrupt their economy (even more than it is now), if they tried to keep up with the U.S. This is all propaganda, meant to instill patriotism in their citizens who clamor getting back their old Soviet Russia.
No doubt they can produce the weapons, but keeping up with the U.S. would require an economy perhaps 10 times the size of what they have now. Russia is a third-world economy.
And we’re $20+ Trillion in debt.
The Russian economy is roughly equal to the state of Texas.
They won't have to win the race. They just have to wait for the next Obama to become President. Then they will attack, knowing he (or she) won't respond. They will win without us returning a shot.
A third-world economy with nukes, and now “Fired from a submarine off the Eastern Seaboard, a hypersonic missile could hit a target at 186 miles in just 109 seconds,” is to be taken seriously.
The issue is whether the damage the enemy could receive makes it worth.