Sen. Chuck GrassleyCharles (Chuck) Ernest GrassleyOvernight Cybersecurity: Senators eye path forward on election security bill | Facebook isn't winning over privacy advocates | New hacks target health care Juan Williams: GOP support for Trump begins to crack This week: Senate barrels toward showdown over Pompeo MORE (R-Iowa) said Congress should do more to prevent the use of synthetic drugs.

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“Congress and the Drug Enforcement Administration have to work hard to stay on top of synthetic drugs,” Grassley said. “The cynical makers of these drugs change one chemical to evade existing federal bans.”

Grassley, who will serve as chairman of the Senate Judiciary Committee next year, applauded the administration’s recent action to ban three more synthetic drugs. 

At the end of the year, Congress also passed a bill that would add synthetic steroids to the controlled substances list.