Investors received a reality check this week after a poll on the upcoming referendum highlighted that the vote might just be closer than many were thinking.
The dollar was mostly flat against a basket of major currencies after U.S. data failed to support expectations for a June or July Fed hike.
The dollar reached a one-month high against the yen on Monday, after Fed Chair Janet Yellen fanned expectations the Fed would raise U.S. rates soon.
The dollar index hit 2-month highs on Friday after Federal Reserve Chair Janet Yellen left the door open to a rate increase.
The dollar fell against the euro, yen, and franc after U.S. economic data showed weakness in business spending plans.
The U.S. dollar rose against the yen for a second straight day and hovered near its highest level in roughly 10 weeks against the euro.
The U.S. dollar hit its highest level against the euro in more than eight weeks on Tuesday and rallied against the yen.
The U.S. dollar gained against the euro on Monday after Federal Reserve officials made hawkish remarks on monetary policy.
The U.S. dollar hit its highest level against the yen in more than three weeks on Friday.
The dollar stood tall and set a three-week high against the yen on Thursday, after the minutes of the U.S. Fed's meeting rekindled expectations.
The dollar rallied to a three-week high against the euro and a basket of currencies on Wednesday.
The U.S. dollar dipped against a basket of major currencies on Tuesday amid U.S. inflation data.
The yen weakened on Monday as risk appetite improved with the rise in oil prices and Japan.
The dollar climbed to a two-week high against a basket of currencies on Friday.
The yen fell as investors sold it on speculation that the Bank of Japan could decide to expand its monetary stimulus as soon as next month.
Brazil's political and economic turmoil is unfolding a hemisphere away. But for U.S. investors and companies, the crisis is hitting home.
Brazilian President Dilma Rousseff is calling the Brazil Senate vote a "coup," reports CNBC's Michelle Caruso-Cabrera.
The dollar fell against a currency basket for the first time in seven days on Wednesday.
Brazil's President Dilma Rousseff could be impeached today. Discussing the market's reaction, with David Riedel, Riedel Research Group president and founder, and Kathryn Rooney Vera, Bulltick Capital Markets director of macroeconomic research.
The yen slid to a nearly two-week low against the dollar on Tuesday as risk appetite improved for a second straight session.