Neither. This is Reuters you're reading. If interest rates are low, savings will be low, so Reuters writes articles about the low savings rate, and says it's bad.
The "vicious circle" they refer to, also known as "the market," will eventually cause interest rates to rise if there is insufficient savings to meet demand. But Reuters will not write articles about how the saings rate is going up. They will write articles saying that high interest rates choke the economy.
Reverse all this stuff if there is a Democrat in the White House, of course. Then all this same stuff is good. When Democrats are in, high spending rates do not mean low savings and talk of doom. Instead those are "boom times." If interest rates rise under a Democrat, it means that savings and investment have never been better.
I hope this helps clear things up.