SINGAPORE  - The dollar weakened in Asian trade Monday as lawmakers in Washington struggle to agree a budget deal that will avoid a damaging debt default.

In Singapore afternoon trade, the greenback slipped to 98.27 yen from 98.59 yen in New York late Friday.  The euro rose to $1.3565 from $1.3546 but dipped to 133.30 yen from 133.55 yen. Japanese markets are closed for a public holiday.

Republicans and Democrats were unable to find a compromise after a rare Sunday session to hammer out a deal to reopen the federal government and raise the country's borrowing limit before a October 17 deadline. The government partially shut down on October 1 after lawmakers failed to agree a new budget.

Harry Reid, the Democratic Leader in the Senate, painted an optimistic picture of the dialogue late Sunday with Republicans, though nothing concrete was disclosed.

Failure to lift the debt limit by Thursday would leave the government unable to pay its bills or service its debts, leading to a devastating default that analysts warn will tip the global economy back into recession.