Under the US sanctions, all of Maduro's assets in the US are frozen, and Americans are barred from financial transactions with him.

Mnuchin is announcing sanctions against Maduro himself, who McMaster just called a dictator

— Rosie Gray (@RosieGray) July 31, 2017

Fast & bold move by @realDonaldTrump on the chaos in Venezuela. Kudos.

— Richard Grenell (@RichardGrenell) July 31, 2017

McMaster: @POTUS is calling on Maduro to hold free and fair elections. https://t.co/ifNEm2Az9U pic.twitter.com/ixsDY8h6YJ

— Fox News (@FoxNews) July 31, 2017

"What we're seeing in Venezuela is not a coup, it's an oppression of the Venezuelan people" -H.R. McMaster

— Katie Pavlich (@KatiePavlich) July 31, 2017

I do not think the Obama administration would have acted this quickly (or ever). https://t.co/Mkos2MW4ah

— Drew McCoy (@_Drew_McCoy_) July 31, 2017

Um...this is actually what a normal presidency would be like https://t.co/cRSbo3ud0f

— John Podhoretz (@jpodhoretz) July 31, 2017

Under the US sanctions, all of Maduro's assets in the US are frozen, and Americans are barred from financial transactions with him.

— Mark Knoller (@markknoller) July 31, 2017

President #Trump names Lt. Gen. McMaster national security adviser.

Congratulations to our new National Security Advisor, General H.R. McMaster! pic.twitter.com/X1AYe4049o

— President Trump (@POTUS) February 20, 2017

News Alert: President #Trump names Lt. Gen. McMaster national security adviser. #Tucker pic.twitter.com/4PGtiloeHa

— Fox News (@FoxNews) February 21, 2017

Incredibly excited about the team @POTUS assembled to protect America's interests at home & abroad. Congratulations Gens McMaster & Kellogg pic.twitter.com/SRcO00QgMx

— Reince Priebus (@Reince45) February 21, 2017

"McMaster is an excellent choice for position because he recognizes U.S. was made weak and vulnerable under the Obama administration."

— Bill Mitchell (@mitchellvii) February 20, 2017

Congratulations General H.R. McMaster you will make a great National Security Advisor.#MakeAmericaGreatAgain🇺🇸 pic.twitter.com/pxFM0EW4jg

— John Galt 🚂💥🇺🇸 (@JohnGGalt) February 21, 2017

Proof of just how perfect a pick GEN McMaster is:https://t.co/HGClntEP4I@POTUS @realDonaldTrump @VP @seanspicer @PressSec @DanScavino

— Sebastian Gorka PhD (@SebGorka) February 20, 2017

A superb choice by @realDonaldTrump --H.R. McMaster for national security adviser https://t.co/3bAwub6go5

— Dinesh D'Souza (@DineshDSouza) February 20, 2017

BREAKING: @POTUS​ announces Gen. H. R. #McMaster will take over as NSA. Also that Gen. Kellog and John Bolton will join the team. #Trump pic.twitter.com/PCtSi9TdPo

— Praying Medic (@prayingmedic) February 20, 2017