Investing.com - The dollar was lower Tuesday as caution set in ahead of key events Thursday.
The dollar index was off 0.20% near seven-month lows at 96.57 at 02:45 ET.
Ex-FBI chief James Comey is due to testify Thursday in the Senate.
Comey may speak about a probe into alleged links between Trump's camp and Russia during the presidential election.
The focus is also on the June 8 U.K. election with one poll showing the Tories' lead had narrowed to a single point.
The (pound) firmed to over $1.29 as it shrugged off the terrorist attacks in London over the weekend.
The (euro) was firm above $1.12. The ECB could adopt a less dovish tone at Thursday's policy meeting.
The greenback was near six-week lows against the (yen) at below the 110 mark.
The (Aussie) recouped losses after current account data as the RBA stood pat on rates.
The market continues to eye developments in the Middle East after the rift between Qatar and some of its neighbors.