Counting that way, 100 percent of the Senate is now using Twitter.
At least three freshman Democratic senators — Sens. Tammy BaldwinTammy BaldwinSenate approves Trump's Agriculture chief Lawmakers talk climate for Earth Day, Science March Trump says he supports Dem ‘Buy America’ bill MORE (Wis.), Martin HeinrichMartin HeinrichThe outdoor recreation economy is a force that is here to stay Senate Dems want Trump to release ethics waivers, visitor logs Senate Dems offer bill to restore internet privacy rules MORE (N.M.) and Heidi HeitkampHeidi HeitkampBattle begins over Wall Street rules Business groups silent on Trump's Ex-Im nominee Sanders supporter to run against red-state Democrat MORE (N.D.) — have yet to set up a new Twitter account to suit their new office, but still have a campaign presence with varying degrees of activity.
Blunt also welcomed several new Republican senators to Twitter in a second tweet on Thursday.
Roy BluntRoy BluntDisconnect: Trump, GOP not on same page GOP senator: There will never be full U.S.-Mexico border wall This week: Congress returns to government shutdown fight MORE (@RoyBlunt) January 17, 2013
The House and Senate leadership have stepped up to promote the accounts of new members. Creating official Twitter accounts for use by their congressional office has become one of the many necessary steps new members take during their first few weeks after taking office.