A judge has blocked New York City Mayor Michael Bloomberg's ban on large, sugary drinks, but the city's leader vows to fight back, reports CNBC's Jackie DeAngelis.

Rep. Tom Price, (R-GA), discusses the GOP's budget plan which would cut the deficit by nearly $5 trillion through entitlement changes and the repeal of Obamacare.

CNBC's Steve Liesman breaks down the latest data on small business optimism, and discusses what it indicates about the economic outlook, with Bill Dunkelberg, National Federation of Independent Business.

There are big changes coming to many frequent flier miles programs, reports CNBC's Phil LeBeau.

The "Squawk Box" news team discusses some of the morning's most provocative headlines.

A look at what traders are watching ahead of the market's open, with Kevin Ferry, Cronus Futures Management.

Tom Buerkle, international editor at Institutional Investor, explains why Norway tops their Country Credit Rating table, while the U.S. has its lowest point tally in over three decades.

CNBC's Jackie DeAngelis reports Mayor Bloomberg vows to fight a judge's ruling that struck down his ban on large, sugary drinks in New York City.

CNBC's Kelly Evans reports European markets opened flat on Tuesday, ahead of bond auctions from both Spain and Italy.

CNBC's Kelly Evans tells you what the markets will be watching as we approach the start of trading in the U.S. (1:13)

The Japanese government said today that a research team has successfully extracted natural gas from methane hydrate, or "burnable ice". The resource poor country looks to take advantage of this discovery. The Nikkei's Sachiko Kishida has more.

Philippe Bodereau, managing director at PIMCO, warns that Italian banks tend to be significantly under-provisioned and that they will need to take some heavy losses in coming quarters.

Willem de Vijlder, CIO of strategy at BNP Paribas Investment Partners, explains why you should invest in real assets in a diversified way.

Graham Stock, chief strategist at Insparo Asset Management, tells CNBC that violence against expatriates in Nigeria doesn't change his investment strategy in the country.

Karen Cho takes you through the European market open where stocks have come in lower.

Andrew Su, CEO at Compass Global Markets, says the growth of shale oil production in the U.S. will force WTI prices down to $75 per barrel by the end of the second quarter.

Tom Mackenzie speaks to the leader of the UK's main opposition party, Labour, about their plans to use small businesses to stimulate the economy.

Holger Schmieding, chief economist at Berenberg, tells CNBC why another election in Italy would be bad news for markets.

Callum Henderson, Global Head of FX Research at Standard Chartered tells CNBC why the U.S. dollar and Asian currencies are his trading picks in 2013.

CNBC's Adam Bakhtiar looks at Blackberry in the daily 'Stock in 60' segment as shares rallied over 14% on takeover speculation from China's Lenovo.