'drag us down' is correct and can be used in written English.
It is used to mean that something causes a person or group to fall into a worse condition. For example: "The difficult economic situation has been dragging us down for the last few years."
"Why must you drag us down into poverty.
Jeb Bush – our nemesis (namesis?) – is going to drag us down with him.
It's one of the fears that the Fed has, that Europe could crumble and drag us down".
But America vowed after Sept. 11 that the terrorists would not be allowed to drag us down to their level.
Unfortunately, the resulting damage would drag us down with them, and within a year the United States would probably tumble into recession.
Such is the magic of stories - they might drag us down to the depths of hell, but in the end they are harmless.
"As a kid growing up, my dad was a big Newport fan and he dragged us down there as kids up until I was about 15. "I used to run on the pitch for Ceri Sweeney's autograph.
What drags us down is abject failure with the low achievers.
He pledges to issue a moratorium on new regulations and to reduce "the anchor dragging us down," the regulatory burden whose growth since 1980 has cost us as much as one-fourth of our gross national product.
"We can do great things if we don't have a politics that drags us down," Mr. Bradley told more than 250 people who gathered in an old opera house here, just four days before New Hampshire's Democratic primary, the first in the nation.
Derbyshire's elite performance director Graeme Welch: "We didn't win any early-season games and that dragged us down, but the lads have been brilliant and kept going all the time.
