The parties have promised spending that could lead to Italy violating eurozone limits on deficits.
While it is important for member countries to implement the limits on debt and deficits, he said, it is also important to observe "the macroeconomic imbalance procedure over time and across countries".
The euro was 0.35 percent higher at $1.1608.
"On the basis of current futures prices for oil, annual rates of headline inflation are likely to hover around the current level for the remainder of the year". At that, the Fed is also moving gradually; with core inflation at 2.2 percent in May, and headline inflation at 2.8 percent, the USA central bank benchmark is only around zero in real terms, when inflation is taken into consideration.
The ECB on Thursday said it was phasing out its bond-buying stimulus program after the end of this year.
A broader slowdown could make it harder for the ECB to cut support if lower growth eases pressure on inflation, a threat to the bank's credibility as it has missed its inflation target of nearly 2 percent for over five years.
Price growth surged to 1.9 percent in May, with higher oil prices the biggest factor lifting it to the ECB's target.
The currency shared by 19 countries fell from $1.1820 to $1.1725 within minutes of the central bank's announcement.
The ECB launched its QE programme in early 2015, expanding its balance sheet to over Euro 2.6 trillion. The program has helped raise inflation and growth in the eurozone, and some investors appear to worry about the consequences of removing that support.
For years since the Great Recession, central banks around the world have thrown massive amounts of stimulus at markets, chiefly through the purchase of billions of dollars of bonds each month.
China's economy is finally starting to cool under the weight of a multi-year crackdown on riskier lending that is pushing up borrowing costs for companies and consumers, with data pointing to a broad slowdown in activity in May.
Asset purchases will be extended beyond September, at a reduced pace of 15 billion Euros a month and, after this short tapering period, will be wound down to zero in December. "This is a very fine balance - a bit more hawkish on QE, but rather dovish on rates - that Mario Draghi hopes will keep the markets on an even keel and avoid a taper tantrum", said Mr Neil Wilson, chief market analyst for Markets.com. Policymakers projected two more rate increases by the end of this year, compared to one previously.
"Quantittatitative easing", or "quantitative easing", is the policy whereby central banks buy up what are essentially like shares in a government, called "bonds", from banks.
"In order to reap the full benefits from our monetary policy measures", Mr. Draghi said at a press conference following the meeting of the governing council in Riga, Latvia, "other policy areas must contribute more decisively to raising the longer-term growth potential and reducing vulnerabilities". The purchases are slated to run at least through September, and longer if necessary.