Leaders tend to rein in generous election promises once they come to power; few tour the country adding more, as Czech Prime Minister Andrej Babiš has been doing. The billionaire businessman says the strength of the economy allows for what is set to be a record spending spree. Some, including the lead economist advising the parliament-appointed National Budget Council, are not so sure, and worry that Babiš may undo the gains from years of belt-tightening when he was finance minister.