By Samuel Indyk and Kevin Buckland

LONDON (Reuters) -The dollar was set for its biggest one-day rise since March 2020 against major peers on Wednesday and bitcoin jumped to an all-time high after Donald Trump was re-elected president, with the Republicans also winning the Senate and making gains in the House.

The U.S. currency’s climb began after very early indications of a Republican win in Georgia and gains have held throughout the European morning.

The – which measures the currency against six major peers – advanced 1.7% to 105.16 as of 1130 GMT, a four-month peak. That put it on course for its best day since March 2020.

Trump’s fiscal, tariff and immigration policies are seen as inflationary by analysts, buoying treasury yields and in turn the dollar.

“It has already been a very strong reaction, a sharp increase in the dollar,” said Niels Christensen, chief analyst at Nordea.

“Expectations of looser fiscal policy and a tight labour market point to higher inflation and higher yields.”

The benchmark 10-year U.S. treasury yield rose 17 basis points to 4.44571%, a four-month high.

The U.S. currency jumped over 3% to 20.8038 Mexican pesos, a more than two-year high. It rose as much as 1.3% to 7.1967 yuan in offshore trading for the first time in almost three months.

The finished the domestic session down 0.8% at 7.1649 per dollar, on track for its biggest daily loss since June 2023.

Mexico and China are among countries that stand to be hardest hit by possible Trump tariffs.

The euro fell as much as 1.9% to $1.0702, its lowest since June 28. Sterling slipped 1.3% to $1.2873.

The dollar rose to 154.38 yen, the highest since July 30. It was last at 153.92.

Japan’s chief cabinet secretary Yoshimasa Hayashi said on Wednesday that the government intended to closely watch moves on the foreign exchange market, including speculative moves, with a higher sense of urgency.

climbed as much as 8.6% to reach a record $75,389. It was last up around 7.5% at $74,361. Trump is seen as more actively supportive of cryptocurrencies than Harris.

Republicans also won control of the Senate, and made gains in the House of Representatives as the party battled to retain control there, raising the potential for a so-called “Red Sweep”.

“The likelihood of a Republican sweep is quite large and that means more expansionary fiscal policy,” said Kirstine Kundby-Nielsen, FX analyst at Danske Bank (CSE:).

“A more expansionary fiscal policy and ‘America first’ approach will support U.S. assets, including the dollar,” Kundby-Nielsen added.